CN110024499A - A kind of mobile terminal, structural member and its manufacturing method - Google Patents

A kind of mobile terminal, structural member and its manufacturing method Download PDF

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Publication number
CN110024499A
CN110024499A CN201780074318.6A CN201780074318A CN110024499A CN 110024499 A CN110024499 A CN 110024499A CN 201780074318 A CN201780074318 A CN 201780074318A CN 110024499 A CN110024499 A CN 110024499A
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CN
China
Prior art keywords
frame
middle plate
mobile terminal
fusing point
internal layer
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Granted
Application number
CN201780074318.6A
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Chinese (zh)
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CN110024499B (en
Inventor
黄礼忠
乔艳党
李威
陈福嘉
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Huawei Device Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN110024499A publication Critical patent/CN110024499A/en
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Publication of CN110024499B publication Critical patent/CN110024499B/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K10/00—Welding or cutting by means of a plasma
    • B23K10/02—Plasma welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0046—Welding
    • B23K15/0093—Welding characterised by the properties of the materials to be welded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
    • B23K20/2336—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer both layers being aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/242—Fillet welding, i.e. involving a weld of substantially triangular cross section joining two parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/28—Seam welding of curved planar seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/18—Sheet panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/12—Copper or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/15—Magnesium or alloys thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0279—Improving the user comfort or ergonomics
    • H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Laminated Bodies (AREA)
  • Laser Beam Processing (AREA)

Abstract

The embodiment of the present application provides a kind of mobile terminal, and the mobile terminal includes structural member, and the structural member forms an integral structure, is convenient for subsequent overall processing, is conducive to the promotion of product size precision.The structural member includes: middle plate and frame, and the frame is used to form the frame of the mobile terminal, and the middle plate is located in the mobile terminal, is used to form the intermediate support plate of the mobile terminal；The frame includes frame internal layer and frame outer layer, and the frame internal layer is different with the frame cladding material；For the contact surface of the middle plate and the frame internal layer by being welded to connect, the fusing point of the frame inner layer material is same or similar with the fusing point of the middle plate material.

Description

A kind of mobile terminal, structural member and its manufacturing method Technical field
This application involves field of mobile terminals more particularly to a kind of methods of mobile terminal, the structural member that can be applied to the structural member of mobile terminal and manufacture mobile terminal.
Background technique
In existing mobile terminal, stainless steel appearance or titanium alloy attribute appearance are one of color, material and surface (Color, Material and Finish, CMF) effect of mobile terminal；But the heating conduction of stainless steel or titanium alloy is poor, density is big, hardness is high, is unfavorable for the control of product thermal diffusivity, lightweight and processing cost.
Summary of the invention
A kind of method that the application provides mobile terminal, can be applied to the structural member of mobile terminal and manufacture the structural member of mobile terminal, it is intended to improve the bond strength of structural member, improve the integral product performance of the mobile terminal using the structural member.
Based on the above, the embodiment of the present application first aspect provides a kind of method of structural member for manufacturing mobile terminal, it may include: to form middle plate；Form at least one frame unit, wherein, the frame unit is an integral structure, including frame internal layer and frame outer layer, the frame internal layer is different with the frame cladding material, the fusing point of the frame inner layer material is same or similar with the fusing point of plate material in this, and the shape of at least one frame unit is adapted to plate in this；By the frame inner layer contacts face of plate in this and at least one frame unit by being welded to connect, structural member is formed, which forms the frame of the mobile terminal, and plate forms the intermediate support plate of the mobile terminal in this.Wherein, integral structure can be understood as the structure with certain appearance and size characteristic of unified machine-shaping.
In the embodiment of the present application, it is initially formed middle plate and at least one frame unit, the shape of at least one frame unit is adapted to plate in this, at least one frame unit and middle plate is then passed through welded connecting, so that it may form structural member.Specifically, structural member may include frame internal layer and frame outer layer, frame inner layer material is different with frame cladding material, is an integral structure；Frame internal layer and middle plate can also be subjected to secondary connection, the whole high-strength integral connection for realizing dissimilar metal by welding.Convenient for subsequent overall processing, be conducive to the promotion of product size precision, be conducive to the matching of material properties and product demand.
In conjunction with the first aspect of the embodiment of the present application, in the first possible implementation of the embodiment of the present application, the step of at least one frame unit of the formation may include: that the frame internal layer and the frame outer layer are formed as one formula structure by pack rolling and thermal diffusion process；The integral structure blanking is obtained at least one frame unit.It should be understood that being formed by by pack rolling and thermal diffusion, integral structure is stronger, and the demand and other effects of user can also be reached according to different material properties.Wherein, after material shape, quantity or quality needed for blanking refers to determining some equipment of production or product, the operating process of the material of certain shapes, quantity or quality is removed from entire or bulk material.
In conjunction with the first aspect of the embodiment of the present application or the first possible implementation, in second of possible implementation of the embodiment of the present application, the step of frame internal layer of middle plate and at least one frame unit is passed through welded connecting by this, may include: that at least one frame unit is fixed in this to form frame on plate；The frame inner layer contacts face of plate in this and the frame is passed through into welded connecting.It should be understood that, there may be at least one welding keyhole, welding keyhole can be used to place camera, antenna etc. when at least one frame unit is connect by agitating friction weldering with middle plate, the space of welding keyhole can be effectively utilized.
In conjunction with the first aspect of the embodiment of the present application or the first possible implementation, in the third possible implementation of the embodiment of the present application, at least one frame unit is cricoid frame unit, the frame inner layer contacts face of middle plate and at least one frame unit is passed through welded connecting by this, it may include: by the frame inner layer contacts face of plate in this and the cricoid frame unit by being welded to connect, which is stamping forming frame.Entirely ring-type frame is integrated, convenient for being welded to connect.
In conjunction with the embodiment of the present application first aspect, the first is to the third any possible implementation, in the 4th kind of possible implementation of the embodiment of the present application, the step of frame inner layer contacts face of plate in this and at least one frame unit is passed through welded connecting by this, may include: to connect plate in this by agitating friction weldering, electron beam welding, plasma welding or Laser Welding with the frame inner layer contacts face of at least one frame unit.Such as: agitating friction weldering is difficult to be attached the biggish metal of different melting points (such as stainless steel and aluminium alloy), and the fusing point of middle plate material is same or similar with the fusing point of frame inner layer material in the embodiment of the present application, so, the bond strength for being welded to connect frame internal layer and middle plate using agitating friction weldering is relatively high, and welding deformation is smaller；The reliability for being conducive to be promoted product is conducive to product structure design and machining accuracy control, and frame internal layer and middle plate can form integrally connected.
In conjunction with the embodiment of the present application first aspect, the first to the 4th kind of any possible implementation, in the 5th kind of possible implementation of the embodiment of the present application, material of plate includes aluminium alloy, magnesium alloy and/or copper alloy in this；The material of the frame internal layer includes the aluminium alloy, the magnesium alloy and/or the copper alloy；The material of the frame outer layer includes stainless steel, titanium alloy and/or ceramics.It should be understood that the material of frame outer layer can be identical, can not also be identical in the same structural member.Such as: when identical, the frame cladding material of all frame units is all stainless steel material；When not identical, the frame cladding material of upper frame member and bottom frame member is stainless steel material, and the frame cladding material of left frame frame member and correct frame part is titanium alloy, specifically without limitation.Alternatively, the material of frame internal layer can be identical in the same structural member, it can not also be identical.Such as: when identical, the frame inner layer material of all frame units is all aluminium alloy；When not identical, the frame inner layer material of upper frame member and bottom frame member is aluminium alloy, and the frame inner layer material of left frame frame member and correct frame part is magnesium alloy, specifically without limitation.
If the material that frame internal layer and middle plate select is aluminium alloy, magnesium alloy and/or when copper alloy, product thermal diffusivity can be promoted, product weight is reduced, also helping reduces CNC difficulty, reduces processing cost.Moreover, the fusing point of frame internal layer and middle plate is same or similar, the bond strength by agitating friction weldering connection is relatively high, and size distortion is smaller.If the material of frame outer layer is stainless steel, the luster effect of stainless steel material attribute may be implemented；If the material of frame outer layer is titanium alloy, the luster effect of titanium alloy attribute may be implemented；If the material of frame outer layer is ceramics, the luster effect of ceramic attribute may be implemented；Meet user to the appearance demand of mobile terminal.
In conjunction with the embodiment of the present application first aspect, the first to the 5th kind of any possible implementation, in the 6th kind of possible implementation of the embodiment of the present application, plate and at least one frame unit are formed as an integrated structure in this.
In conjunction with the embodiment of the present application first aspect, the first to the 6th kind of any possible implementation, in the 7th kind of possible implementation of the embodiment of the present application, the thickness of the frame internal layer is more than or equal to the thickness of the frame outer layer.While i.e. frame outer layer meets specific appearance effect, the weight of product can be reduced as far as possible.
In conjunction with the embodiment of the present application first aspect, the first to the 7th kind of any possible implementation, in the 8th kind of possible implementation of the embodiment of the present application, the mechanical strength of the frame outer layer is greater than the mechanical strength of the frame internal layer.The material of frame outer layer is different with the material of frame internal layer, for example, the outline border of the structural member of formation is relatively durable, drop resistant if the mechanical strength of frame outer layer is greater than the mechanical strength of frame internal layer.Wherein, mechanical strength may include hardness and strength, wherein intensity can be yield strength, tensile strength.
In conjunction with the embodiment of the present application first aspect, the first is to the 8th kind of any possible implementation, in the 9th kind of possible implementation of the embodiment of the present application, plate is plate, solid profile, the anisotropic materials such as profile or hollow material in this, specifically without limitation.
In conjunction with the embodiment of the present application first aspect, the first is to the 9th kind of any possible implementation, in the tenth kind of possible implementation of the embodiment of the present application, the fusing point of frame inner layer material is same or similar with the fusing point of middle plate material to be can include but is not limited to: the absolute value of the difference of the fusing point of the fusing point of frame inner layer material and middle plate material is less than preset threshold value, or, the ratio of the fusing point of the fusing point of frame inner layer material and middle plate material is in presetting range, alternatively, there are identical subset fusing point sections for the fusing point of the fusing point of frame inner layer material and middle plate material.It should be understood that the same or similar material of fusing point is easier to weld together, preset threshold value and threshold range are all an empirical values, can be adjusted in time according to actual needs.
The embodiment of the present application second aspect provides a kind of method for manufacturing mobile terminal, it may include: that the first of first aspect, first aspect in above-mentioned the embodiment of the present application such as makes structural member to the 10th kind of any possible implementation, the structural member recycled to form the mobile terminal.Details are not described herein again.
The embodiment of the present application third aspect provides a kind of mobile terminal, the mobile terminal includes structural member, the structural member may include: middle plate and frame, the frame is used to form the frame of the mobile terminal, plate is located in the mobile terminal in this, the intermediate support plate for forming mobile terminal, if can be used for supporting the dry units of the mobile terminal；The frame includes frame internal layer and frame outer layer, and the frame internal layer and the frame outer layer are an integral structure；Contact surface of plate and the frame internal layer is welded by agitating friction and is connected in this, and the fusing point of the frame inner layer material is same or similar with the fusing point of plate material in this；Plate material and the frame inner layer material are aluminium alloy in this, which is stainless steel or titanium alloy.
In the embodiment of the present application, which may include: middle plate and frame, which is used to form the frame of the mobile terminal, and plate is located in the mobile terminal in this, as the intermediate support plate of mobile terminal, if can be used for supporting the dry units of the mobile terminal；The frame includes frame internal layer and frame outer layer, the material of frame internal layer is aluminium alloy, the material of middle plate is also aluminium alloy, the material of frame outer layer is stainless steel or titanium alloy, because the fusing point of frame internal layer and frame outer layer difference is too big, it is an integral structure, can be specifically an integral structure using pack rolling and thermal diffusion process；The material of frame internal layer and middle plate is all aluminium alloy, and the bond strength by agitating friction weldering connection is high, and postwelding size distortion is small, and, be conducive to product structure design and machining accuracy control, moreover, because the density of aluminium alloy is small, the weight of structural member can largely be reduced, and and the appearance of stainless steel material may be implemented, when the material of frame outer layer is titanium alloy when being stainless steel in the material of frame outer layer, the appearance that titanium alloy may be implemented reaches the appearance demand of consumer.
The embodiment of the present application fourth aspect provides a kind of mobile terminal, if the mobile terminal includes structural member and dry units, the structural member may include: middle plate and frame, the frame is used to form the frame of the mobile terminal, plate is located in the mobile terminal in this, the intermediate support plate for forming mobile terminal, if can be used for supporting the dry units of the mobile terminal；The frame includes frame internal layer and frame outer layer, and the frame internal layer and the frame outer layer are an integral structure, and the frame internal layer is different with the frame cladding material；For the contact surface of plate and the frame internal layer by being welded to connect, the fusing point of the frame inner layer material is same or similar with the fusing point of plate material in this in this.Wherein, integral structure can be understood as the structure with certain appearance and size characteristic of unified machine-shaping.
In the embodiment of the present application, if mobile terminal may include structural member and dry units, the structural member includes middle plate and frame, the frame is used to form the frame of the mobile terminal, plate is located in the mobile terminal in this, as the intermediate support plate of mobile terminal, if can be used for supporting the dry units of the mobile terminal；The frame includes frame internal layer and frame outer layer, Frame internal layer and frame outer layer are an integral structure, and frame internal layer is different with frame cladding material；Frame internal layer and middle plate can connect with welding again, and the fusing point of frame inner layer material is same or similar with the fusing point of middle plate material.The structural member can support the intensity of the mobile terminal.That is frame internal layer and frame outer layer is an integral structure, and frame internal layer and middle plate can connect with welding again, ultimately forms an integral structure, is convenient for subsequent overall processing, is conducive to the promotion of product size precision, is conducive to the matching of material properties and product demand.
In conjunction with the fourth aspect of the embodiment of the present application, in the first implementation of the fourth aspect of the embodiment of the present application, which is formed as one formula structure by pack rolling and thermal diffusion process with the frame outer layer.It should be understood that being formed by by pack rolling and thermal diffusion, integral structure is stronger, and the demand etc. of user can also be reached according to different material properties.
In conjunction with the fourth aspect of the embodiment of the present application or the first possible implementation, in second of possible implementation of the embodiment of the present application, plate is connect with the contact surface of the frame internal layer by agitating friction weldering, electron beam welding, plasma welding or Laser Welding in this.Such as: agitating friction weldering is difficult to be attached the biggish metal of different melting points (such as stainless steel and aluminium alloy), and the fusing point of middle plate material is same or similar with the fusing point of frame inner layer material in the embodiment of the present application, so, the bond strength for being welded to connect frame internal layer and middle plate using agitating friction weldering is relatively high, and welding deformation is smaller；The reliability for being conducive to be promoted product is conducive to product structure design and machining accuracy control, and frame internal layer and middle plate can form integrally connected.
In conjunction with the fourth aspect of the embodiment of the present application, the first possible implementation or second of possible implementation, in the third possible implementation of the embodiment of the present application, material of plate includes aluminium alloy, magnesium alloy and/or copper alloy in this；The material of the frame internal layer includes the aluminium alloy, the magnesium alloy and/or the copper alloy；The material of the frame outer layer includes stainless steel, titanium alloy and/or ceramics.
If the material that frame internal layer and middle plate select is aluminium alloy, magnesium alloy and/or when copper alloy, product thermal diffusivity can be promoted, product weight is reduced, also helping reduces CNC difficulty, reduces processing cost.Moreover, the fusing point of frame internal layer and middle plate is same or similar, the bond strength by agitating friction weldering connection is relatively high, and size distortion is smaller.If the material of frame outer layer is stainless steel, the luster effect of stainless steel material attribute may be implemented；If the material of frame outer layer is titanium alloy, the luster effect of titanium alloy attribute may be implemented；If the material of frame outer layer is ceramics, the luster effect of ceramic attribute may be implemented；Meet user to the appearance demand of mobile terminal.
In conjunction with the embodiment of the present application fourth aspect, the first to the third any possible implementation, in the 4th kind of possible implementation of the embodiment of the present application, which forms frame by being welded to connect in this on plate.It should be understood that, there may be at least one welding keyhole, welding keyhole can be used to place camera, antenna etc. when at least one frame unit is connect by agitating friction weldering with middle plate, the space of welding keyhole can be effectively utilized.
In conjunction with the embodiment of the present application fourth aspect, the first to the third any possible implementation, in the 5th kind of possible implementation of the embodiment of the present application, which is to pass through stamping forming cyclic annular frame.Entirely frame is integrated, convenient for being welded to connect.
In conjunction with the embodiment of the present application fourth aspect, the first to the 5th kind of any possible implementation, in the 6th kind of possible implementation of the embodiment of the present application, plate and at least one frame unit are structure as a whole in this.
In conjunction with the embodiment of the present application fourth aspect, the first to the 6th kind of any possible implementation, in the 7th kind of possible implementation of the embodiment of the present application, the thickness of the frame internal layer is more than or equal to the thickness of the frame outer layer.While i.e. frame outer layer meets specific appearance effect, the weight of product can be reduced as far as possible.
In conjunction with the embodiment of the present application fourth aspect, the first to the 7th kind of any possible implementation, in the 8th kind of possible implementation of the embodiment of the present application, the mechanical strength of the frame outer layer is greater than the mechanical strength of the frame internal layer.The material of frame outer layer is different with the material of frame internal layer, for example, the outline border of the structural member of formation is relatively durable, drop resistant if the mechanical strength of frame outer layer is greater than the mechanical strength of frame internal layer.Wherein, mechanical strength may include hardness and strength, wherein intensity can be yield strength, tensile strength.
In conjunction with the embodiment of the present application fourth aspect, the first is to the 8th kind of any possible implementation, in the 9th kind of possible implementation of the embodiment of the present application, material of plate can be plate, solid profile, the anisotropic materials such as profile or hollow material in this, specifically without limitation.
In conjunction with the embodiment of the present application fourth aspect, the first is to the 9th kind of any possible implementation, in the tenth kind of possible implementation of the embodiment of the present application, the fusing point of frame inner layer material is same or similar with the fusing point of middle plate material to be can include but is not limited to: the absolute value of the difference of the fusing point of the fusing point of frame inner layer material and middle plate material is less than preset threshold value, or, the ratio of the fusing point of the fusing point of frame inner layer material and middle plate material is in presetting range, alternatively, there are identical subset fusing point sections for the fusing point of the fusing point of frame inner layer material and middle plate material.It should be understood that the same or similar material of fusing point is easier to weld together, preset threshold value and threshold range are all an empirical values, can be adjusted in time according to actual needs.
In the embodiment of the present application, mobile terminal includes structural member, which includes middle plate and frame, which is used to form the frame of the mobile terminal, and plate is used to form the intermediate support plate of the mobile terminal in this；The frame includes frame internal layer and frame outer layer, and frame internal layer is different with frame cladding material；Frame internal layer and middle plate can connect with welding again, and the fusing point of frame inner layer material is same or similar with the fusing point of middle plate material.The bond strength of structural member can be improved, improve the integral product performance of the mobile terminal using the structural member.I.e. frame includes frame internal layer and frame outer layer, and frame internal layer and middle plate can connect with welding again, ultimately forms an integral structure, is convenient for subsequent overall processing, is conducive to the promotion of product size precision, is conducive to the matching of material properties and product demand.
Detailed description of the invention
Fig. 1 is a process schematic for processing the structural member of mobile terminal；
Fig. 2 is another process schematic for processing the structural member of mobile terminal；
Fig. 3 A is one embodiment schematic diagram of the structural member of mobile terminal in the embodiment of the present application；
Fig. 3 B is a schematic diagram of pack rolling and thermal diffusion process in the embodiment of the present application；
Fig. 3 C is a process schematic of agitating friction weldering welding in the embodiment of the present application；
Fig. 4 A- Fig. 4 O is the schematic diagram of the structural member of mobile terminal in the embodiment of the present application；
Fig. 4 P is a schematic diagram of the structural member of the mobile terminal of machine-shaping in the embodiment of the present application；
Fig. 4 Q is a diagrammatic cross-section of the structural member of the mobile terminal of machine-shaping in the embodiment of the present application；
Fig. 4 R is a schematic diagram of the thickness of the thickness and frame outer layer of frame internal layer in the embodiment of the present application；
Fig. 5 is one embodiment schematic diagram that the method for structural member of mobile terminal is manufactured in the embodiment of the present application；
Fig. 6 A is a schematic diagram for forming middle plate in the embodiment of the present application by A1 alloy；
Fig. 6 B is a schematic diagram for carrying out pack rolling and thermal diffusion process in the embodiment of the present application to A2 alloy and X material；
Fig. 6 C is to obtain a schematic diagram of at least one frame member to plate cutting in the embodiment of the present application；
Fig. 6 D is the schematic diagram that agitating friction is welded in the embodiment of the present application；
Fig. 6 E is the schematic diagram that the integral structure formed in the embodiment of the present application at least one frame unit and middle plate is forged and pressed.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application is described, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those skilled in the art's every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.
In the scheme of a kind of " the integrally forging and stamping+computer numerical control (CNC) machining (Computerized Numerical Control Machine; CNC) of stainless steel frame, middle plate ", as shown in Figure 1, a process schematic of the structural member for processing mobile terminal.Stainless steel materials are forged and pressed to form initial blank through multistep, by CNC+ nanometers of injection molding (Nano Molding Technology, NMT)+post-processing+physical vapour deposition (PVD) (Physical Vapor Deposition, PVD) etc. obtains final finished.But in this scenario, stainless steel poor thermal conductivity (thermal coefficient: 15-20 watts/(rice Kelvin, W/m.K)), unfavorable product heat dissipation；Big (the 7.9kg/m of stainless steel density2), it is unfavorable for product lightweight；Stainless steel hardness is high, CNC long processing time, and cutter loss is serious, and processing cost is high.
In the scheme of a kind of " plate riveting (or laser welding) in forging and stamping stainless steel frame and die casting aluminium ".As shown in Fig. 2, another process schematic of the structural member for processing mobile terminal.Stainless steel center frame can be obtained by multistep forging and stamping and CNC, connect it with plate in die casting aluminium using riveting or Laser Welding, obtain final finished by operations such as CNC+NMT+ post-processing+PVD.But in this scenario, riveting occupied space is big, especially thickness direction, is unfavorable for product design；Frame is that stainless steel is unfavorable for product loss of weight；Frame is stainless steel, and processing cost is higher.The mode that frame is connected with middle plate is had: if riveting occupied space is big, especially thickness direction using the connection type of riveting, being unfavorable for product design；If solder bond intensity is low, is unfavorable for product reliability control, and postwelding size distortion is big, is unfavorable for product precision control by the way of melting welding (such as Laser Welding) connection.
In the embodiment of the present application, if mobile terminal includes structural member and dry units, structural member includes middle plate and frame, which is used to form the frame of mobile terminal, and plate is located in mobile terminal in this, if being used to support the dry units of mobile terminal；The frame includes frame internal layer and frame outer layer, and frame internal layer and frame outer layer are an integral structure, and frame internal layer is different with frame cladding material；The frame internal layer and middle plate of frame can connect with welding again, form structural member, and the fusing point of frame inner layer material is same or similar with the fusing point of middle plate material.An integral structure is ultimately formed, the bond strength of middle plate, frame internal layer and frame outer layer is not only effectively improved, and be convenient for subsequent overall processing, is conducive to the promotion of product size precision, is conducive to the matching of material properties and product demand.
Technical scheme is described further by way of examples below, is one embodiment schematic diagram of mobile terminal in the embodiment of the present application as shown in Figure 3A；Mobile terminal includes structural member 30, and structural member 30 includes:
Middle plate 301 and frame 302, frame 302 are used to form the frame of mobile terminal, and middle plate 301 is used to form the intermediate support plate of mobile terminal, if the dry units of mobile terminal can be supported；Frame 302 includes frame internal layer 3021 and frame outer layer 3022, and frame internal layer 3021 is an integral structure with frame outer layer 3022, and frame internal layer 3021 is different with 3022 material of frame outer layer；The contact surface of middle plate 301 and frame internal layer 3021, which passes through, to be welded to connect, and the fusing point of 3021 material of frame internal layer is same or similar with the fusing point of middle 301 material of plate.
In the embodiment of the present application, mobile terminal includes structural member, if can also include dry units；Structural member includes middle plate and frame again, which includes frame internal layer and frame outer layer, and frame internal layer and frame outer layer are an integral structure, and frame internal layer is different with frame cladding material；Frame internal layer and middle plate can connect with welding again, and the fusing point of frame inner layer material is same or similar with the fusing point of middle plate material；Frame is used to form the frame of mobile terminal, and middle plate is located in mobile terminal, as the intermediate support plate of mobile terminal, if the dry units of mobile terminal can be set on middle plate.The structural member can support the intensity of mobile terminal.That is frame internal layer and frame outer layer is an integral structure, frame internal layer and middle plate can connect with welding again, ultimately form an integral structure, not only effectively improve the bond strength of middle plate, frame internal layer and frame outer layer, and it is convenient for subsequent overall processing, the promotion for being conducive to product size precision is conducive to the matching of material properties and product demand.Wherein, integral structure can be understood as the structure with certain appearance and size characteristic of unified machine-shaping.
Optionally, in some embodiments of the present application, the fusing point of 3021 material of frame internal layer is same or similar with the fusing point of middle 301 material of plate to be can include but is not limited to: the absolute value of the difference of the fusing point of the fusing point of 3021 material of frame internal layer and middle 301 material of plate is less than preset threshold value, or, the ratio of the fusing point of the fusing point of 3021 material of frame internal layer and middle 301 material of plate is in presetting range, alternatively, there are identical subset fusing point sections for the fusing point of the fusing point of 3021 material of frame internal layer and middle 301 material of plate.It should be understood that the same or similar material of fusing point is easier to weld together, preset threshold value and threshold range are all an empirical values, can be adjusted in time according to actual needs.For example, this preset threshold value can be 300 DEG C or 400 DEG C etc.；Presetting range can be between 0.5-1.5 (such as middle plate material and frame inner layer material are all aluminium alloy, and fusing point can be identical, ratio 1, between 0.5 and 1).There are identical subset fusing point sections for example: aluminium alloy melting range can be with are as follows: 450-660 DEG C, magnesium alloy melting range can be with are as follows: and 430-650 DEG C, then, existing same subsets fusing point section is just 430-650 DEG C.
It should be understood that, mobile terminal may include mobile phone, tablet computer, personal digital assistant (Personal Digital Assistant, PDA), any terminal device such as point-of-sale terminal (Point of Sales, POS), vehicle-mounted computer, wearable device.If dry units may include the device of the mobile terminals such as battery, mainboard, preceding camera, rear camera, sound equipment, vibrating motor.
Optionally, in some embodiments of the present application, frame internal layer 3021 is formed as one formula structure by pack rolling and thermal diffusion process with frame outer layer 3022.It should be understood that being formed by by pack rolling and thermal diffusion, integral structure is stronger, and the demand etc. of user can also be reached according to different material properties.
It illustratively, as shown in Figure 3B, is a schematic diagram of pack rolling and thermal diffusion process in the embodiment of the present application.In practical applications, materials A and material B can be surface-treated (such as greasy dirt cleaning, brush polishing oxide layer) by (1), so that faying face cleans；(2) materials A and material B material are overlapped and (is such as pre-fixed with rivet) again；(3) by after overlapping materials A and material B be placed into roll, carry out pack rolling connection, form A+B material；(4) A+B material is finally subjected to heat diffusion treatment, so that combination interface atom phase counterdiffusion, enhances interface bond strength.
Optionally, in some embodiments of the present application, middle plate 301 is connect with the contact surface of frame internal layer 3021 by agitating friction weldering, electron beam welding, plasma welding or Laser Welding.It should be noted that, when middle plate 301 and frame internal layer 3021 are welded, in one possible implementation, the contact surface of middle plate 301 and frame internal layer 3021 can weld comprehensively, i.e., the contact surface of middle plate 301 and frame internal layer 3021 welds comprehensively, it is not the welding at interval, nor spot welding, nor by the welding of several connectors, compared to existing welded connecting and glue connection, with extraordinary mechanical performance, such as conjugation, overall mechanical strength etc..In alternatively possible implementation, middle plate 301 is connect with the contact surface of frame internal layer 3021 by agitating friction weldering comprehensively, and there may be at least one to weld keyhole, It should be understood that welding keyhole can be used to place camera, antenna etc. in actual products application, the space of welding keyhole can be effectively utilized.
Here agitating friction is welded and makees a brief description, the metal of two kinds of different materials or identical material can be combined by agitating friction weldering.It as shown in Figure 3 C, is a process schematic of agitating friction weldering welding in the embodiment of the present application.
Agitating friction welds process are as follows: the special shaft shoulder of a cylindricality band and the convex stirring-head of needle are rotating insertion welded piece, friction between stirring-head and materials to be welded produces frictional heat, make materials to be welded thermoplastification, when stirring tool is moved forward along interface to be welded, the material of thermoplastification is posteriorly shifted by the front of stirring-head, and under the mechanical forging of stirring tool effect, realize the solid diffusivity between workpiece.
Agitating friction weldering has the advantages that solid diffusivity, and joint performance is excellent, and melting welding defect is smaller；Human factor influences small in mechanization implementation process；Bevel and special cleaning are not required to before weldering；Welding deformation and contraction are small；Welding flue dust and splashing, without ultraviolet and electromagnetic radiation；Protection gas, packing material are not needed；It is environmentally protective, pollution-free；High production efficiency, such as 1-50mm weld seam can be penetrated once.
But agitating friction weldering is difficult to be attached the biggish metal of different melting points (such as stainless steel and aluminium alloy), and the absolute value of the difference of the fusing point of the fusing point and 3021 material of frame internal layer of middle 301 material of plate is less than preset threshold value in the embodiment of the present application, or, the ratio of the fusing point of the fusing point of 3021 material of frame internal layer and middle 301 material of plate is in presetting range, or, there are identical subset fusing point sections for the fusing point of the fusing point of 3021 material of frame internal layer and middle 301 material of plate, so, the bond strength for being in this application welded to connect frame internal layer 3021 and middle plate 301 using agitating friction weldering is relatively high, welding deformation is smaller；The reliability for being conducive to be promoted product is conducive to product structure design and machining accuracy control, and frame internal layer 3021 and middle plate 301 can form integrally connected.
Optionally, in some embodiments of the present application, the material of middle plate 301 includes aluminium alloy, magnesium alloy and/or copper alloy；The material of frame internal layer 3021 includes aluminium alloy, magnesium alloy and/or copper alloy；The material of frame outer layer 3022 includes stainless steel, titanium alloy and/or ceramics.It should be understood that the material of frame outer layer 3022 can be identical, can not also be identical in the same structural member 30.Such as: when identical, the frame cladding material of all frame units is all stainless steel material；When not identical, the frame cladding material of upper frame member and bottom frame member is stainless steel material, and the frame cladding material of left frame frame member and correct frame part is titanium alloy, specifically without limitation.Alternatively, the material of frame internal layer 3021 can be identical in the same structural member 30, it can not also be identical.Such as: when identical, the frame inner layer material of all frame units is all aluminium alloy；When not identical, the frame inner layer material of upper frame member and bottom frame member is aluminium alloy, and the frame inner layer material of left frame frame member and correct frame part is magnesium alloy, specifically without limitation.
Illustratively, aluminium alloy melting range can be with are as follows: 450-660 DEG C, magnesium alloy melting range can be with are as follows: 430-650 DEG C, stainless steel melting range can be with are as follows: 1200-1550 DEG C.(1) material of plate 301 is aluminium alloy in, the material of frame internal layer 3021 is aluminium alloy, when the material of frame outer layer 3022 is stainless steel, the appearance of stainless steel material attribute may be implemented in frame outer layer 3022, the fusing point of frame internal layer 3021 and frame outer layer 3022 difference is larger, it can be connected by pack rolling with thermal diffusion process, then middle plate 301 is close with the fusing point of frame internal layer 3021, it is easy to realize high strong ties by agitating friction weldering, eventually form an overall structure, CNC can be carried out to this overall structure again, NMT, surface treatment, the common process such as PVD, obtain the structural member of mobile terminal, in some embodiments, structural member can be a finished product.
(2) in the material of plate 301 be aluminium alloy, frame internal layer 3021 material be material when being titanium alloy of aluminium alloy, frame outer layer 3022, the appearance of titanium alloy material attribute, 3021 He of frame internal layer may be implemented in frame outer layer 3022 The fusing point difference of frame outer layer 3022 is larger, it can be connected by pack rolling with thermal diffusion process, then middle plate 301 is close with the fusing point of frame internal layer 3021, it is easy to realize high strong ties by agitating friction weldering, an overall structure is eventually formed, then the common processes such as CNC, NMT, surface treatment, PVD can be carried out to this overall structure, obtains the structural member of mobile terminal, in some embodiments, structural member can be a finished product.
If the material that frame internal layer and middle plate select is aluminium alloy, magnesium alloy and/or when copper alloy, product thermal diffusivity can be promoted, product weight is reduced, also helping reduces CNC difficulty, reduces processing cost.Moreover, the fusing point of frame internal layer and middle plate is same or similar, the bond strength by agitating friction weldering connection is relatively high, and size distortion is smaller.If the material of frame outer layer is stainless steel, the luster effect of stainless steel material attribute may be implemented；If the material of frame outer layer is titanium alloy, the luster effect of titanium alloy attribute may be implemented；If the material of frame outer layer is ceramics, the luster effect of ceramic attribute may be implemented；Meet user to the appearance demand of mobile terminal.
Optionally, in some embodiments of the present application, frame 302 is at least one frame unit by being welded to connect the frame formed on middle plate.It should be understood that, there may be at least one welding keyhole, welding keyhole can be used to place camera, antenna etc. when at least one frame unit is connect by agitating friction weldering with middle plate 301, the space of welding keyhole can be effectively utilized.
It illustratively, as shown in figs. 4 a-4b, is several exemplary diagrams of the structural member of mobile terminal in the embodiment of the present application, frame 302 is a structural member composition.Such as in the schematic diagram shown in Fig. 4 A, there is a structural member gap, entire frame 302 be it is integrated, convenient for being welded to connect, this gap is subsequent to can be used as a day linear slit, moreover, being arranged in top layer, can preferably cooperate the design of antenna.
It is several exemplary diagrams of the structural member of mobile terminal in the embodiment of the present application as shown in Fig. 4 C-4H, frame 302 is two structural member compositions.Such as in the schematic diagram shown in Fig. 4 C and Fig. 4 G, there are two structural member gaps, and antenna or other structures can preferably be cooperated to design.
It is several exemplary diagrams of the structural member of mobile terminal in the embodiment of the present application as shown in Fig. 4 I-4K, frame 302 is three structural member compositions.Such as in the schematic diagram shown in Fig. 4 I and Fig. 4 J, there are three structural member gap, top layer has one, and there are two bottoms or two sides, and the two structural member gaps are symmetrically, both to have can be used as a day linear slit on the whole, it appears that but it is relatively beautiful.
It is several exemplary diagrams of the structural member of mobile terminal in the embodiment of the present application as shown in Fig. 4 L-4N, frame 302 is four structural member compositions.Such as in the schematic diagram shown in Fig. 4 L and Fig. 4 M, there are four structural member gap, this four structural member gaps are all symmetrical up and down, not only can be used as a day linear slit, but also relatively beautiful.
It should be noted that being several schematic diagrames of the structural member of mobile terminal about Fig. 4 A-4N, the structural member of the mobile terminal of actual production includes but is not limited to shown in Fig. 4 A-4N.
Optionally, in some embodiments of the present application, frame 302 is by stamping forming cyclic annular frame.It illustratively, is another schematic diagram of the structural member of mobile terminal in the embodiment of the present application as shown in Fig. 4 O.
Optionally, in some embodiments of the present application, middle plate 301 and frame 302 are structure as a whole.Illustratively, it is another schematic diagram of the structural member of the mobile terminal of machine-shaping as shown in Fig. 4 P, is a diagrammatic cross-section of the structural member of the mobile terminal of machine-shaping as shown in Fig. 4 Q.
Optionally, in some embodiments of the present application, the shape of frame 302 and 301 shape of middle plate are mutually coincide.
Optionally, in some embodiments of the present application, middle plate 301 is to be formed to need by punching, sawing, forging and stamping or CNC The plate of shape and size is sought, alternatively, being the plate of casting and forming.
Optionally, in some embodiments of the present application, the thickness L1 of frame internal layer 3021 is more than or equal to the thickness L2 of frame outer layer 3022.For example, the thickness L1 of frame internal layer can be between 2mm-10mm, specifically, the thickness L1 of frame internal layer can be 6mm, 7mm etc., depending on actual needs；The thickness L2 of frame outer layer can be between 0.1-2mm, specifically, the thickness L2 of frame outer layer can be 0.8mm, 0.6mm etc., depending on actual needs.While i.e. frame outer layer 3022 meets specific appearance effect and product size requirement, the weight of product can be reduced as far as possible.As shown in Fig. 4 R, for a schematic diagram of the thickness of the thickness and frame outer layer of frame internal layer.
Optionally, in some embodiments of the present application, the mechanical strength of frame outer layer is greater than the mechanical strength of frame internal layer.Wherein, mechanical strength may include hardness and strength, can be presented as that the density of material of X material is greater than the density of material of A2 alloy, wherein intensity can be yield strength, tensile strength.The material of frame outer layer 3022 is different with the material of frame internal layer 3021, if the mechanical strength of frame outer layer 3022 is greater than the mechanical strength of frame internal layer 3021, the frame of the structural member of formation is relatively durable, drop resistant.
Optionally, in some embodiments of the present application, middle plate 301 can be plate, solid profile, anisotropic profile or hollow material, specifically without limitation.
In the embodiment of the present application, the structural member of mobile terminal includes middle plate and frame, and frame is used to form the frame of mobile terminal, and middle plate is located in mobile terminal, if being used to support the dry units of mobile terminal；Frame includes frame internal layer and frame outer layer again, frame internal layer is different with the material of frame outer layer, formula structure can be connected as one by pack rolling and thermal diffusion process, realize the integrally connected of dissimilar metal, frame internal layer and middle plate can be subjected to secondary connection by agitating friction weldering, electron beam welding, plasma welding or laser welding techniques again, realize the high-strength integral connection of dissimilar metal；It is subsequent to carry out the techniques such as whole forging and stamping, CNC, NMT, processing and forming, surface treatment and PVD again, form the in-built effect of stainless steel, titanium alloy perhaps materials such as appearance aluminium alloy, magnesium alloy or copper alloy of the materials such as ceramics.If frame internal layer and middle plate are aluminium alloy, the bond strength welded by agitating friction is relatively high, due also to the high-termal conductivity of aluminium alloy, can promote product thermal diffusivity；The density of aluminium alloy is relatively low, can reduce product weight, moreover, can also reduce processing cost using the free-cutting machinability of aluminium alloy.
It should be noted that in one possible implementation, mobile terminal includes structural member 30, and structural member 30 includes: in conjunction with above-described embodiment
Middle plate 301 and frame 302, frame 302 are used to form the frame of mobile terminal, and middle plate 301 is located in mobile terminal, the intermediate support plate of mobile terminal are formed, if can be used for supporting the dry units of mobile terminal；Frame 302 includes frame internal layer 3021 and frame outer layer 3022, and frame internal layer 3021 and frame outer layer 3022 are an integral structure, and frame internal layer 3021 is different with 3022 material of frame outer layer；The contact surface of middle plate 301 and frame internal layer 3021 is welded by agitating friction to be connected, and the fusing point of 3021 material of frame internal layer is same or similar with the fusing point of middle 301 material of plate；The material of frame outer layer 3022 is stainless steel, and the material of frame internal layer 3021 and middle plate 301 is aluminium alloy.
In the embodiment of the present application, the structural member of mobile terminal includes middle plate and frame, and frame is used to form the frame of mobile terminal, and middle plate is located in mobile terminal, as the intermediate support plate of mobile terminal, if can be used for supporting the dry units of mobile terminal；Frame includes frame internal layer and frame outer layer again, and frame internal layer is different with the material of frame outer layer；The material of frame internal layer is aluminium alloy, and the material of middle plate is also aluminium alloy, and the material of frame outer layer is that stainless steel is an integral structure because the fusing point of frame internal layer and frame outer layer difference is too big, can be specifically an integral structure using pack rolling and thermal diffusion process；In frame The material of layer and middle plate is all aluminium alloy, bond strength by agitating friction weldering connection is high, postwelding size distortion is small, moreover, being conducive to product structure design and machining accuracy control, and, because the density of aluminium alloy is small, the weight of structural member can be largely reduced, and when the material of frame outer layer is stainless steel, the appearance that stainless steel material may be implemented again reaches the appearance demand of consumer.
In conjunction with above-described embodiment, in alternatively possible implementation, if mobile terminal includes structural member 30 and dry units, structural member 30 includes:
Middle plate 301 and frame 302, frame 302 are used to form the frame of mobile terminal, and middle plate 301 is used to form the intermediate support plate of mobile terminal；Frame 302 includes frame internal layer 3021 and frame outer layer 3022, and frame internal layer 3021 is different with 3022 material of frame outer layer；The contact surface of middle plate 301 and frame internal layer 3021 is welded by agitating friction to be connected, and the fusing point of 3021 material of frame internal layer is same or similar with the fusing point of middle 301 material of plate；The material of frame outer layer 3022 is titanium alloy, and the material of frame internal layer 3021 and middle plate 301 is aluminium alloy.
In the embodiment of the present application, the structural member of mobile terminal includes middle plate and frame, and frame is used to form the frame of mobile terminal, and middle plate is located in mobile terminal, as the intermediate support plate of mobile terminal, if can be used for supporting the dry units of mobile terminal；Frame includes frame internal layer and frame outer layer again, and frame internal layer is different with the material of frame outer layer；The material of frame internal layer is aluminium alloy, and the material of middle plate is also aluminium alloy, and the material of frame outer layer is that stainless steel is an integral structure because the fusing point of frame internal layer and frame outer layer difference is too big, can be specifically an integral structure using pack rolling and thermal diffusion process；The material of frame internal layer and middle plate is all aluminium alloy, bond strength by agitating friction weldering connection is high, postwelding size distortion is small, moreover, being conducive to product structure design and machining accuracy control, and, because the density of aluminium alloy is small, the weight of structural member can be largely reduced, and when the material of frame outer layer is titanium alloy, the appearance that titanium alloy material may be implemented again reaches the appearance demand of consumer.
The method of the structural member for manufacturing mobile terminal a kind of in the embodiment of the present application is described further below, as shown in figure 5, to manufacture one embodiment schematic diagram of the structural member of mobile terminal in the embodiment of the present application, comprising:
501, plate in processing formation.
In the embodiment of the present application, the material of middle plate is referred to as A1 alloy, and A1 alloy may include aluminium alloy, magnesium alloy and/or copper alloy etc..As shown in Figure 6A, a schematic diagram to carry out plate in processing formation to A1 alloy, wherein middle plate is located in mobile terminal, if being used to support the dry units of mobile terminal.The middle plate of demand shape and size can be obtained using modes such as punching, sawing, forging and stamping or CNC moldings to A1 alloy.Wherein, A1 alloy can be plate, solid profile, the opposite sex or hollow material.It should be understood that middle plate can also be the plate of casting and forming, specifically without limitation；Then molding middle plate can be started the cleaning processing.
502, processing forms at least one frame unit, at least one frame unit includes frame internal layer and frame outer layer, and frame internal layer and frame outer layer are an integral structure, and frame internal layer is different with frame cladding material.
In the embodiment of the present application, the step of forming at least one frame unit may include: that frame internal layer and frame outer layer are formed as one formula structure by pack rolling and thermal diffusion process；Integral structure blanking is obtained at least one frame unit.The plate to form at least one frame unit is first processed, which is connected as one formula structure by least two different materials, specifically can be and is connected as one formula structure by pack rolling and thermal diffusion process by least two different materials.Wherein, integral structure can be understood as the structure with certain appearance and size characteristic of unified machine-shaping.It should be understood that step 501 with 502 timing without limitation, moreover, step 501 and 502 be optional step.
Illustratively, the material of the plate internal layer is referred to as A2 alloy, the material of outer layer is appearance material, abbreviation X material.A2 alloy may include aluminium alloy, magnesium alloy and/or copper alloy etc.；X material may include the materials such as stainless steel, titanium alloy and/or ceramics, X material and A2 alloy can be connected as one formula structure by pack rolling and thermal diffusion process, as shown in Figure 6B, about the detailed process that X material and A2 alloy are connected as one to formula structure, can be with reference to shown in above-mentioned Fig. 3 B, details are not described herein again.
Optionally, the thickness of A2 alloy is more than or equal to the thickness of X material, can reduce the weight of product as far as possible.For example, the thickness L1 of frame internal layer can between 2mm-10mm, specifically, the thickness L1 of frame internal layer can be 6mm, 8mm etc., can according to actual needs depending on；The thickness L2 of frame outer layer can between 0.1-2mm, specifically, the thickness L2 of frame outer layer can be 0.8mm, 0.6mm etc., can according to actual needs depending on.Optionally, the mechanical strength of X material is greater than the mechanical strength of A2 alloy, wherein mechanical strength may include hardness and strength, can be presented as that the density of material of X material is greater than the density of material of A2 alloy, wherein intensity can be yield strength, tensile strength.That is the frame of the structural member of X material formation, relatively durable, drop resistant.
Then blanking is carried out to the plate again, at least one frame unit of acquisition demand shape and size, at least one frame unit include frame internal layer and frame outer layer, wherein, frame internal layer and frame outer layer have been an integral structure, and frame internal layer is different with frame cladding material；At least one frame unit can be started the cleaning processing again.As shown in Figure 6 C, a schematic diagram of at least one frame unit is obtained to carry out blanking to plate.Wherein, after material shape, quantity or quality needed for blanking refers to determining some equipment of production or product, the operating process of the material of certain shapes, quantity or quality is removed from entire or bulk material.
Wherein, the quantity of frame unit can be 1,2,3 or 4 etc., according to actual needs depending on.When if it is a frame unit, it can be by stamping forming cyclic annular frame, with middle plate matches mutually；It when if it is at least two, 3 or 4 frame units, is welded to connect with middle plate, a frame, the shape of the frame and middle plate matches mutually can be formed.It should be understood that frame is used to form the frame of mobile terminal.
503, the frame inner layer contacts face of middle plate and at least one frame unit is formed into structural member by being welded to connect.
In the embodiment of the present application, it may include: that middle plate is connect with the frame inner layer contacts face of at least one frame unit by agitating friction weldering, electron beam welding, plasma welding or Laser Welding by (1) by the frame internal layer of middle plate and at least one frame unit by being welded to connect；Alternatively, at least one frame unit is fixed on middle plate by (2) forms frame；The contact surface of the frame internal layer of frame and middle plate is passed through into welded connecting；Or, (3) at least one frame unit is a cricoid frame unit, the frame inner layer contacts face of middle plate and at least one frame unit is passed through into welded connecting, it may include: by the contact surface of the frame internal layer of cricoid frame unit and middle plate by being welded to connect, cyclic annular frame is stamping forming frame.
Clamp tool can be first passed through to position at least one frame unit and middle plate, connected using agitating friction weldering, electron beam welding, plasma welding or Laser Welding, form the integral structure of high strong ties.As shown in Figure 6 D, the schematic diagram welded for agitating friction, wherein path of welding is not limited to straight line path, can also be curved path etc..It is completed it should be understood that welding can be primary welding, i.e., from the beginning to the end, is also possible to first weld one section, not be soldered, continued welding followed by the part welded before and complete, specifically without limitation.If above-mentioned Fig. 4 A-4O is any shown, for several schematic diagrames of the structural member for the structure that is welded as a whole in the embodiment of the present application, details are not described herein again.It should be noted that A1 alloy melting point and A2 alloy melting point are same or similar.The absolute value that specifically can be the difference of the fusing point of A1 alloy and the fusing point of A2 alloy is less than preset threshold value, alternatively, the ratio of the fusing point of the fusing point of A1 alloy and A2 alloy is in presetting range, alternatively, the fusing point of A1 alloy and A2 alloy Fusing point there are identical subset fusing point sections.It should be understood that material similar in fusing point links together more easily by agitating friction weldering, preset threshold value and threshold range are all an empirical values, can be adjusted in time according to actual needs, for example, this preset threshold value can be 300 DEG C；Presetting range can be between 0.5-1.5 (such as middle plate material and frame inner layer material are all aluminium alloy, and fusing point can be identical, ratio 1, between 0.5 and 1)；There are identical subset fusing point sections for example: aluminium alloy melting range can be with are as follows: 450-660 DEG C, magnesium alloy melting range can be with are as follows: and 430-650 DEG C, then, existing same subsets fusing point section is just 430-650 DEG C.
Illustratively, A1 alloy is aluminium alloy, and aluminium alloy melting range can be 450-660 DEG C, A2 alloy is also aluminium alloy, or is magnesium alloy, and magnesium alloy melting range can be with are as follows: 430-650 DEG C, X material is stainless steel, and stainless steel melting range can be with are as follows: 1200-1550 DEG C.
When the material of A1 alloy be aluminium alloy, A2 alloy material be aluminium alloy, X material is stainless steel when, the appearance of stainless steel material attribute may be implemented in X material, the fusing point of X material and A2 alloy difference is larger, it can be connected by pack rolling with thermal diffusion process, then the fusing point of A1 alloy and A2 alloy is close, it is easy to realize high strong ties by agitating friction weldering, eventually form an overall structure, the common processes such as CNC, NMT, surface treatment, PVD can be carried out to this overall structure again, obtain the structural member of mobile terminal.
When the material of A1 alloy be aluminium alloy, A2 alloy material be aluminium alloy, X material is titanium alloy when, the appearance of titanium alloy material attribute may be implemented in X material, the fusing point of X material and A2 alloy difference is larger, it can be connected by pack rolling with thermal diffusion process, then the fusing point of A1 alloy and A2 alloy is close, it is easy to realize high strong ties by agitating friction weldering, eventually form an overall structure, the common processes such as CNC, NMT, surface treatment, PVD can be carried out to this overall structure again, obtain the structural member of mobile terminal.
If the material that A2 alloy and A1 alloy select is aluminium alloy, magnesium alloy or copper alloy, product thermal diffusivity can be promoted, reduces product weight, also helping reduces CNC difficulty, reduces processing cost.So the fusing point of A1 alloy and the fusing point of A2 alloy are not much different, the bond strength by agitating friction weldering connection is relatively high, and size distortion is smaller.If X material is stainless steel, the luster effect of stainless steel material attribute may be implemented；If the material of frame outer layer is titanium alloy, the luster effect of titanium alloy attribute may be implemented；If the material of frame outer layer is ceramics, the luster effect of ceramic attribute may be implemented；Meet user to the appearance demand of mobile terminal.
It should be understood that the quantity of frame unit can be four frame units and middle plate is welded to connect, it is also possible to the frame unit and middle plate welded connecting of two, three or other quantity；It can also be welded to connect in the unilateral side of middle plate, bilateral is welded to connect；Or it is cyclic annular frame or round frame that above-mentioned plate, which is passed through punch forming, is mutually coincide with the shape of middle plate, then be welded to connect with middle plate, specifically without limitation.In one possible implementation, the contact surface of middle plate and frame internal layer can weld comprehensively, it is not the welding at interval, nor spot welding, nor the welding for passing through several connectors, compared to existing welded connecting and glue connection, there is extraordinary mechanical performance, such as conjugation, overall mechanical strength etc..In alternatively possible implementation, the contact surface of middle plate and frame internal layer can weld welding comprehensively by agitating friction, there may be at least one to weld keyhole, it should be understood that, in actual products application, welding keyhole can be used to place camera, antenna etc., the effective space using welding keyhole.About the explanation of agitating friction weldering, can illustrate with reference to shown in above-mentioned Fig. 3 C, details are not described herein again.
Agitating friction weldering is difficult to be attached the biggish metal of different melting points (such as stainless steel and aluminium alloy), and the absolute value of the difference of middle plate (A1 alloy) fusing point and frame internal layer (A2 alloy) fusing point is less than preset threshold value in the embodiment of the present application, or, the ratio of frame internal layer (A2 alloy) fusing point and middle plate (A1 alloy) fusing point is in presetting range, alternatively, in frame There are identical subset fusing point sections with middle plate (A1 alloy) fusing point for layer (A2 alloy) fusing point, so, the bond strength for being in this application welded to connect frame internal layer and middle plate using agitating friction weldering is relatively high, and welding deformation is smaller；The reliability for being conducive to be promoted product is conducive to product structure design and machining accuracy control, and frame internal layer and middle plate can form integrally connected.
The selection of A1 alloy/A2 alloy can are as follows: aluminium alloy/aluminium alloy, aluminium alloy/magnesium alloy, magnesium/aluminum alloy, magnesium alloy/magnesium alloy, copper alloy/copper alloy etc..Collocation about X material, A2 alloy and A1 alloy includes but is not limited to shown in following table 1:
Material X material A2 alloy A1 alloy
Purposes Realize appearance For being connected with A1 alloy Middle plate (inner cavity) structure
Combination 1 Stainless steel Aluminium alloy Aluminium alloy
Combination 2 Stainless steel Aluminium alloy Magnesium alloy
Combination 3 Stainless steel Magnesium alloy Aluminium alloy
Combination 4 Stainless steel Magnesium alloy Magnesium alloy
Combination 5 Stainless steel Copper alloy Copper alloy
Combination 6 Titanium alloy Aluminium alloy Aluminium alloy
Combination 7 Titanium alloy Aluminium alloy Magnesium alloy
Combination 8 Titanium alloy Magnesium alloy Aluminium alloy
Combination 9 Titanium alloy Magnesium alloy Magnesium alloy
Combination 10 Titanium alloy Copper alloy Copper alloy
Combination 11 Ceramic material Aluminium alloy Aluminium alloy
Combination 12 Ceramic material Aluminium alloy Magnesium alloy
Combination 13 Ceramic material Magnesium alloy Aluminium alloy
Combination 14 Ceramic material Magnesium alloy Magnesium alloy
Combination 15 Ceramic material Copper alloy Copper alloy
Table 1
It should also be noted that, the material of frame outer layer can be identical, can not also be identical in the same structural member.Such as: when identical, the frame cladding material of all frame units is all stainless steel material；When not identical, the frame cladding material of upper frame member and bottom frame member is stainless steel material, and the frame cladding material of left frame frame member and correct frame part is titanium alloy, specifically without limitation；Alternatively, the material of frame internal layer can be identical, it can not also be identical.Such as: when identical, the frame inner layer material of all frame units is all aluminium alloy；When not identical, the frame inner layer material of upper frame member and bottom frame member is aluminium alloy, and the frame inner layer material of left frame frame member and correct frame part is magnesium alloy, specifically without limitation.
In the embodiment of the present application, as illustrated in fig. 6e, the schematic diagram that the integral structure that can also be formed at least one frame unit and middle plate is forged and pressed.The integral structure of high strong ties can be shaped to the preliminary profile of appearance demand using forging and stamping or Sheet Metal Forming Technology, be also possible to the subsequent machining preliminary profile for appearance demand.Further, using the common process such as CNC, NMT, surface treatment, PVD, finished product processing is completed, is the schematic diagram of the structural member of machine-shaping as shown in above-mentioned 4P-4Q.
In the embodiment of the present application, plate and at least one frame unit in formation, then pass through at least one frame unit and middle plate It is welded to connect, so that it may form structural member.Specifically, structural member may include frame internal layer and frame outer layer, frame inner layer material is A2 alloy, and frame cladding material is X material.X material is different with the material of A2 alloy, formula structure can be connected as one by pack rolling and thermal diffusion process, realize the integrally connected of dissimilar metal, A2 alloy and A1 alloy can be subjected to secondary connection, the whole high-strength integral connection for realizing dissimilar metal by agitating friction weldering, electron beam welding, plasma welding or laser welding techniques again；It is subsequent to carry out the techniques such as whole forging and stamping, CNC, NMT, processing and forming, surface treatment and PVD again, form the in-built effect of stainless steel, titanium alloy perhaps materials such as appearance aluminium alloy, magnesium alloy or copper alloy of the materials such as ceramics.Wherein, frame is used to form the frame of mobile terminal, and middle plate is located in mobile terminal, if being used to support the dry units of mobile terminal.If the material of A1 alloy and A2 alloy is aluminium alloy, the bond strength by agitating friction weldering connection is relatively high, due also to the high-termal conductivity of aluminium alloy, can promote product thermal diffusivity；The density of aluminium alloy is relatively low, can reduce product weight, moreover, can also reduce processing cost using the free-cutting machinability of aluminium alloy.Moreover, X material is stainless steel, titanium alloy etc., the appearance of stainless steel or titanium alloy can achieve.
It should be noted that the embodiment of the present application also provides a kind of method for manufacturing mobile terminal, this method includes method either in above-mentioned embodiment illustrated in fig. 5, forms the mobile terminal using the structural member, details are not described herein again.
It is described above; the only specific embodiment of the application, but the protection scope of the application is not limited thereto, and anyone skilled in the art is within the technical scope of the present application; it can easily think of the change or the replacement, should all cover within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.

Claims (21)

  1. A method of the structural member of manufacture mobile terminal, which is characterized in that the described method includes:
    Plate in formation；
    Form at least one frame unit, wherein, the frame unit includes frame internal layer and frame outer layer, the frame internal layer is different with the frame cladding material, the fusing point of the frame inner layer material is same or similar with the fusing point of the middle plate material, and the shape of at least one frame unit is adapted to the middle plate；
    By the frame inner layer contacts face of the middle plate and at least one frame unit by being welded to connect, structural member is formed, at least one described frame unit forms the frame of the mobile terminal, and the middle plate forms the intermediate support plate of the mobile terminal.
  2. The method according to claim 1, wherein the step of described at least one frame unit of formation, comprising:
    The frame internal layer and the frame outer layer are formed as one formula structure by pack rolling and thermal diffusion process；
    The integral structure blanking is obtained at least one described frame unit.
  3. Method according to claim 1 or 2, which is characterized in that the step of frame inner layer contacts face by middle plate and at least one frame unit passes through welded connecting, comprising:
    At least one described frame unit is fixed on the middle plate and forms frame；
    The frame inner layer contacts face of the middle plate and the frame is passed through into welded connecting.
  4. Method according to claim 1 or 2, which is characterized in that at least one described frame unit is cricoid frame unit, and the frame inner layer contacts face by middle plate and at least one frame unit passes through welded connecting, comprising:
    By the frame inner layer contacts face of the middle plate and the cricoid frame unit by being welded to connect, the ring-type frame is stamping forming frame.
  5. Method according to any of claims 1-4, which is characterized in that the step of frame inner layer contacts face by the middle plate and at least one frame unit passes through welded connecting, comprising:
    The middle plate is connect with the frame inner layer contacts face of at least one frame unit by agitating friction weldering, electron beam welding, plasma welding or Laser Welding.
  6. Method described in -5 any one according to claim 1, which is characterized in that
    The material of the middle plate includes aluminium alloy, magnesium alloy and/or copper alloy；
    The material of the frame internal layer includes the aluminium alloy, the magnesium alloy and/or the copper alloy；
    The material of the frame outer layer includes stainless steel, titanium alloy and/or ceramics.
  7. Method described in -6 any one according to claim 1, which is characterized in that the thickness of the frame internal layer is more than or equal to the thickness of the frame outer layer.
  8. Method described in -7 any one according to claim 1, which is characterized in that the mechanical strength of the frame outer layer is greater than the mechanical strength of the frame internal layer.
  9. Method according to any one of claims 1 to 8, which is characterized in that the fusing point of the frame inner layer material is same or similar with the fusing point of the middle plate material to include:
    The absolute value of the difference of the fusing point of the fusing point of the frame inner layer material and the middle plate material is less than preset threshold value；Alternatively,
    The ratio of the fusing point of the fusing point of the frame inner layer material and the middle plate material is in presetting range；Alternatively,
    There are identical subset fusing point sections for the fusing point of the fusing point of the frame inner layer material and the middle plate material.
  10. Method described in -9 any one according to claim 1, which is characterized in that the middle plate is plate, solid type Material, anisotropic profile or hollow material.
  11. A method of manufacture mobile terminal, wherein the described method includes:
    Utilize the structural member as described in method according to any one of claims 1 to 10 production；
    The mobile terminal is formed using the structural member.
  12. A kind of mobile terminal, which is characterized in that the mobile terminal includes structural member, and the structural member includes:
    Middle plate and frame, the frame are used to form the frame of the mobile terminal, and the middle plate is used to form the intermediate support plate of the mobile terminal；
    The frame includes frame internal layer and frame outer layer, and the frame internal layer is different with the frame cladding material；
    For the contact surface of the middle plate and the frame internal layer by being welded to connect, the fusing point of the frame inner layer material is same or similar with the fusing point of the middle plate material.
  13. Mobile terminal according to claim 12, which is characterized in that the frame internal layer is formed as one formula structure by pack rolling and thermal diffusion process with the frame outer layer.
  14. Mobile terminal according to claim 12 or 13, which is characterized in that the middle plate is connect with the contact surface of the frame internal layer by agitating friction weldering, electron beam welding, plasma welding or Laser Welding.
  15. Mobile terminal described in 2-14 any one according to claim 1, which is characterized in that
    The material of the middle plate includes aluminium alloy, magnesium alloy and/or copper alloy；
    The material of the frame internal layer includes the aluminium alloy, the magnesium alloy and/or the copper alloy；
    The material of the frame outer layer includes stainless steel, titanium alloy and/or ceramics.
  16. Mobile terminal described in 2-15 any one according to claim 1, which is characterized in that the frame is at least one frame unit by being welded to connect the frame formed on the middle plate.
  17. Mobile terminal described in 2-16 any one according to claim 1, which is characterized in that the frame is by stamping forming cyclic annular frame.
  18. Mobile terminal described in 2-17 any one according to claim 1, which is characterized in that the thickness of the frame internal layer is more than or equal to the thickness of the frame outer layer.
  19. Mobile terminal described in 2-18 any one according to claim 1, which is characterized in that the mechanical strength of the frame outer layer is greater than the mechanical strength of the frame internal layer.
  20. Mobile terminal described in 2-19 any one according to claim 1, it is characterized in that, the absolute value of the difference of the fusing point of the fusing point of the frame inner layer material and the middle plate material is less than preset threshold value, or, the ratio of the fusing point of the fusing point of the frame inner layer material and the middle plate material is in presetting range, alternatively, there are identical subset fusing point sections for the fusing point of the fusing point of the frame inner layer material and the middle plate material.
  21. Mobile terminal described in 2-20 any one according to claim 1, which is characterized in that the middle plate is plate, solid profile, anisotropic profile or hollow material.
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CN112338169A (en) * 2019-08-09 2021-02-09 Oppo广东移动通信有限公司 Structural member, method of manufacturing structural member, and electronic apparatus
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CN113365447A (en) * 2020-03-03 2021-09-07 华为机器有限公司 Shell, electronic equipment and manufacturing method of shell
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