CN107323022B - Adhesive joint structure of composite material and metal material and preparation method thereof - Google Patents
Adhesive joint structure of composite material and metal material and preparation method thereof Download PDFInfo
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- CN107323022B CN107323022B CN201710607276.XA CN201710607276A CN107323022B CN 107323022 B CN107323022 B CN 107323022B CN 201710607276 A CN201710607276 A CN 201710607276A CN 107323022 B CN107323022 B CN 107323022B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
Abstract
The utility model relates to a combined material and metal material's glued joint structure and preparation method thereof, this glued joint connection structure includes combined material connecting plate, metal connecting piece and reinforcement piece, metal connecting piece includes first sub-connecting plate, second sub-connecting plate and the third sub-connecting plate that is parallel to each other and set up along the horizontal direction interval, first sub-connecting plate sets up in second sub-connecting plate top, the third sub-connecting plate with first sub-connecting plate and second sub-connecting plate are for 20-90 at the connection angle α that the length direction formed, combined material connecting plate through first glue joint layer with second sub-connecting plate and third sub-connecting plate are laminated mutually, the reinforcement piece connects simultaneously first sub-connecting plate and combined material connecting plate through the second glue joint layer.
Description
Technical Field
The disclosure relates to the technical field of connection of dissimilar materials, in particular to a glue joint structure of a composite material and a metal material and a preparation method thereof.
Background
In recent years, composite materials have been widely used in the engineering fields of aerospace, automobiles, military, sporting goods and the like due to the advantages of high specific strength and specific stiffness, good fatigue resistance and corrosion resistance and the like. In the application process, the composite material and other dissimilar materials, especially metal materials, are inevitably required to be connected so as to combine the advantages of the respective materials for the optimal design of the structure. At present, the connection between the composite material and the metal mainly comprises three types, namely adhesive connection, mechanical connection and mixed connection. Where the mechanical connection can transmit large loads, it however requires holes in the structure causing composite fibre damage and stress concentration around the hole and furthermore is not conducive to lightweight designs of the structure due to the need to introduce heavy metal fasteners. Hybrid joining combines both adhesive and mechanical joining methods, which however often results in higher costs and greater weight. The glued joint does not require holes, does not require heavy metal fasteners and therefore does not cause stress concentrations and the joint is light, inexpensive, but has a relatively low load-bearing capacity and joint strength.
Disclosure of Invention
The adhesive connection structure provided by the disclosure has the advantages of low cost, simplicity in design and manufacture and high connection strength.
In order to achieve the above object, the present disclosure provides a composite material and metal material's glued joint structure, this glued joint structure includes composite material connecting plate, metal connecting piece and reinforcement piece, metal connecting piece is including being parallel to each other and along first sub-connecting plate, the second sub-connecting plate that horizontal direction interval set up and connecting the third sub-connecting plate of first sub-connecting plate and second sub-connecting plate, first sub-connecting plate sets up in second sub-connecting plate side top, the third sub-connecting plate with the connection angle α that first sub-connecting plate and second sub-connecting plate formed on length direction is 20-90, the composite material connecting plate through first glued joint layer with second sub-connecting plate and third sub-connecting plate are laminated mutually, the reinforcement piece set up in the top of first sub-connecting plate and composite material connecting plate and connect simultaneously through the second glued joint layer first sub-connecting plate and composite material connecting plate.
Optionally, the connection angle α is 45-90 °.
Optionally, the metal connecting piece is made of at least one material selected from steel, aluminum alloy, magnesium alloy and titanium alloy; the composite material connecting plate is made of a high-molecular matrix fiber reinforced composite material, wherein the high-molecular matrix is thermoplastic resin and/or thermosetting plastic, and the fiber is at least one selected from glass fiber, carbon fiber, aramid fiber and natural fiber.
Optionally, the materials of the first adhesive layer and the second adhesive layer are respectively epoxy resin and/or polyurethane; the reinforcing sheet is made of a high-molecular matrix fiber reinforced composite material, wherein the high-molecular matrix is thermoplastic resin and/or thermosetting plastic, and the fiber is at least one selected from glass fiber, carbon fiber, aramid fiber and natural fiber.
Optionally, the surface of the metal connecting piece in contact with the first adhesive layer and the second adhesive layer is subjected to surface treatment, wherein the surface treatment is at least one selected from mechanical grinding, sanding, shot blasting, anodic oxidation, acid treatment, laser etching and plasma spraying.
The invention also provides a preparation method of the glue joint structure of the composite material and the metal material, which comprises the steps of a, preparing a metal connecting piece, wherein the metal connecting piece comprises a first sub-connecting plate, a second sub-connecting plate and a third sub-connecting plate, the first sub-connecting plate and the second sub-connecting plate are parallel to each other and are arranged at intervals along the horizontal direction, the third sub-connecting plate is used for connecting the first sub-connecting plate and the second sub-connecting plate, the first sub-connecting plate is arranged above the second sub-connecting plate, the third sub-connecting plate and the first sub-connecting plate and the second sub-connecting plate form a connecting angle α of 20-90 degrees in the length direction, b, attaching the composite connecting plate to the second sub-connecting plate and the third sub-connecting plate through a first glue joint layer, c, arranging a reinforcing sheet above the first sub-connecting plate and the composite connecting plate, and simultaneously connecting the first sub-connecting plate and the composite connecting plate through a.
Optionally, the connection angle α is 45-90 °.
Optionally, the metal connecting piece is made of at least one material selected from steel, aluminum alloy, magnesium alloy and titanium alloy; the composite material connecting plate is made of a high-molecular matrix fiber reinforced composite material, wherein the high-molecular matrix is thermoplastic resin and/or thermosetting plastic, and the fiber is at least one selected from glass fiber, carbon fiber, aramid fiber and natural fiber.
Optionally, the materials of the first adhesive layer and the second adhesive layer are respectively epoxy resin and/or polyurethane; the reinforcing sheet is made of a high-molecular matrix fiber reinforced composite material, wherein the high-molecular matrix is thermoplastic resin and/or thermosetting plastic, and the fiber is at least one selected from glass fiber, carbon fiber, aramid fiber and natural fiber.
Optionally, before the step b, performing surface treatment on the surface of the metal connecting piece in contact with the first adhesive layer and the second adhesive layer, wherein the surface treatment is at least one selected from mechanical grinding, sanding, shot blasting, anodizing, acid treatment, laser etching and plasma spraying.
According to the metal connecting piece, the metal connecting piece is designed to have a connecting angle of 20-90 degrees, and the composite material connecting plate and the metal connecting piece are reinforced by the reinforcing pieces, so that the strength of a glue joint connecting structure is improved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a schematic structural view of an embodiment of the adhesive joint structure of the present disclosure.
Fig. 2 is a schematic structural view of another embodiment of the adhesive joint structure of the present disclosure.
Description of the reference numerals
1 composite material connecting plate 2 metal connecting piece 3 reinforcing sheet
21 first sub-web 22 second sub-web 23 third sub-web
41 first adhesive layer 42 second adhesive layer
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise specified, directional terms such as "upper and lower" are generally used to refer to the upper and lower directions in the drawings.
As shown in fig. 1-2, the present disclosure provides a composite material and metal material bonding connection structure, which includes a composite material connection plate 1, a metal connector 2 and a reinforcement sheet 3, where the metal connector 2 includes a first sub-connection plate 21, a second sub-connection plate 22, and a third sub-connection plate 23 connecting the first sub-connection plate 21 and the second sub-connection plate 22, the first sub-connection plate 21 is disposed above the second sub-connection plate 22, the third sub-connection plate 23 and the first sub-connection plate 21 and the second sub-connection plate 22 form a connection angle α of 20-90 ° in the length direction, the composite material connection plate 1 is attached to the second sub-connection plate 22 and the third sub-connection plate 23 through a first bonding layer 41, and the reinforcement sheet 3 is disposed above the first sub-connection plate 21 and the composite material connection plate 1 and simultaneously connects the first sub-connection plate 21 and the composite material connection plate 1 through a second bonding layer 42.
According to the composite material and metal material bonding connection structure, the connection angle design is introduced into the metal connecting piece, so that the peeling effect of the connection structure caused by load eccentricity under tensile or compressive load is reduced, and in addition, the reinforcing sheet is introduced into the connection structure, so that the bearing capacity and the connection strength of the connection structure under tensile, compressive and bending loads are greatly improved. The structure is simple in manufacturing process and low in cost, has remarkably improved bearing capacity and connection strength compared with an original single-lap-joint and bent-lap-joint connection structure, and has lower cost and light weight effect compared with a double-lap-joint connection structure.
The inventors of the present disclosure found that the strength of the dissimilar material bonding has a direct relationship with the connection angle, as shown in fig. 1 to 2, which is the angle formed by the three sub-connection plates in the respective lengthwise directions or in the vertical plane, and tested that the load of the connection structure increases as the connection angle increases, and thus, the connection angle α is preferably 45 to 90 °, more preferably 60 to 90 °, further preferably 75 to 90 °, still further preferably 85 to 90 °, and most preferably 90 °.
According to the present disclosure, the metal connecting piece and the composite material connecting plate are made of dissimilar materials, for example, the material of the metal connecting piece 2 may be at least one selected from steel, aluminum alloy, magnesium alloy and titanium alloy; the composite material connecting plate can be made of a non-metal material, preferably a polymer composite material, and more preferably a polymer matrix fiber reinforced composite material, wherein the polymer matrix can be thermoplastic resin and/or thermosetting plastic, the thermoplastic resin can be epoxy resin, phenolic aldehyde, bismaleimide, polyimide and the like, the thermosetting plastic can be nylon, polyether ether ketone, polyether sulfone and the like, the fiber can be at least one selected from glass fiber, carbon fiber, aramid fiber and natural fiber, and can also be other organic or inorganic fibers. The types of fibers may include short fibers, long fibers, continuous fibers, and the like. The composite connecting plate can be prepared by injection molding, compression molding or by adopting the processes of autoclave, resin transfer molding and the like.
According to the present disclosure, the adhesive layer is well known to those skilled in the art, and is used for adhering metal connectors, composite material connecting plates and reinforcing sheets, for example, the material of the first adhesive layer 41 and the second adhesive layer 42 can be epoxy resin and/or polyurethane, respectively, and the thickness of the adhesive layer and the length and size of the adhesive area can be optimally designed according to the type and size of the external load; the reinforcing sheet is also well known to those skilled in the art, and may be of various materials, for example, the material of the reinforcing sheet may be a polymer matrix fiber reinforced composite material, wherein the polymer matrix may be a thermoplastic resin, which may be epoxy resin, phenol resin, bismaleimide, polyimide, or the like, and/or a thermosetting plastic, which may be nylon, polyether ether ketone, polyether sulfone, or the like, and the fiber may be at least one selected from glass fiber, carbon fiber, aramid fiber, and natural fiber, or may be other organic or inorganic fiber. The types of fibers may include short fibers, long fibers, continuous fibers, and the like. The size and thickness of the reinforcing sheet and the fiber laying angle or weaving angle and mode can be designed according to the type and size of the external load, so that the load eccentricity is avoided as much as possible.
According to the present disclosure, in order to increase the connection strength of the metal connection member with the composite connection plate and the reinforcing sheet, the surface of the metal connection member 2 contacting the first and second adhesive layers 41 and 42 may be subjected to a surface treatment, wherein the surface treatment may be at least one selected from mechanical grinding, sanding, shot blasting, anodizing, acid treatment, laser etching, and plasma spraying. The surface area of the metal connecting piece subjected to surface treatment is increased, so that the bonding area of the metal connecting piece and the bonding layer is increased, and the bonding strength is improved.
As shown in FIGS. 1-2, the present disclosure further provides a method for preparing a glue joint structure of a composite material and a metal material, the method includes a, preparing a metal connector 2, which can be formed by integral punch forming or sectional welding, wherein the metal connector 2 includes a first sub-connector 21, a second sub-connector 22 and a third sub-connector 23 connecting the first sub-connector 21 and the second sub-connector 22, the first sub-connector 21 is disposed above the second sub-connector 22, the third sub-connector 23 and the first sub-connector 21 and the second sub-connector 22 form a joint angle α of 20-90 degrees in the length direction, b, attaching the composite material connector 1 to the second sub-connector 22 and the third sub-connector 23 through a first glue layer 41, the first glue layer can be formed by a glue film or co-curing, c, disposing a reinforcing sheet 3 above the first sub-connector 21 and the composite material connector 1, and simultaneously attaching the second glue layer 42 and the second sub-connector 21 to the composite material connector 21 or the second glue layer.
According to the method, in the glue joint preparation process of the composite material and the metal material, the design of the joint angle is introduced into the metal connecting piece, so that the peeling effect of the connecting structure caused by load eccentricity under tensile or compressive load is reduced, and in addition, the bearing capacity and the joint strength of the connecting structure under tensile, compressive and bending loads are greatly improved by introducing the reinforcing sheet into the connecting structure. The structure is simple in manufacturing process and low in cost, has remarkably improved bearing capacity and connection strength compared with an original single-lap-joint and bent-lap-joint connection structure, and has lower cost and light weight effect compared with a double-lap-joint connection structure. The composite material and metal material connecting structure disclosed by the invention is simple in manufacturing process, low in cost, but remarkable in effect, and has important significance for manufacturing a high-performance composite material and metal material glue joint connecting structure.
The present disclosure is further illustrated by the following examples, but is not limited thereby.
Example 1
The composite connecting plate used in this example is a three-dimensional woven fabric reinforced epoxy resin composite (trade designation RIM935/RIMH936) made of a mixture of carbon fibers and glass fibers, the metal connecting piece is a common steel plate, and the adhesive film is made of polyurethane (trade designation DOW tape force 9050S).
The specific manufacturing steps are as follows:
1. a90-degree connecting angle is formed by processing a steel plate in a stamping mode, the thickness of the steel plate is 1.2mm, the length of the formed second sub-connecting plate 22 is 13.7mm, the width of the formed second sub-connecting plate is 25mm, and the length of the formed third sub-connecting plate 23 is 2.6mm and the width of the formed third sub-connecting plate is 25 mm.
2. The composite material which has the thickness of 1mm, the width of 25mm and the length of 25mm and is the same as the composite material connecting plate is used as the reinforcing sheet.
3. The composite material connecting piece, the metal connecting piece and the composite material reinforcing piece are glued together by adopting a glue film with the thickness of 0.6mm, and the obtained connecting structure is shown in figure 2.
The ultimate tensile load of the connection structure is 4229.9N and the ultimate bending load is 1317.6N as can be calculated by finite element analysis using ABAQUS software.
Example 2
Substantially the same as in example 1 except that the joining angle punching in step 1 was 45 °. The ultimate tensile load of the connection structure is 3847.0N and the ultimate bending load is 1105.4N through experiments and analytical calculation.
Example 3
Substantially the same as in example 1 except that the joining angle was punched at 30 ° in step 1. Through test and analysis calculation, the ultimate tensile load of the connecting structure is 3441.0N, and the ultimate bending load is 1028.0N.
Example 4
Substantially the same as in example 1 except that the joining angle punching in step 1 was 60 °. Through test and analysis calculation, the ultimate tensile load of the connecting structure is 3925.1N, and the ultimate bending load is 1220.9N.
Example 5
Substantially the same as in example 1 except that the joining angle was punched at 75 ° in step 1. Through test and analysis calculation, the ultimate tensile load of the connecting structure is 4095.0N, and the ultimate bending load is 1222.9N.
Example 6
Substantially the same as in example 1 except that the joining angle punching in step 1 was 85 °. Through test and analysis calculation, the ultimate tensile load of the connecting structure is 4181.1N, and the ultimate bending load is 1311.0N.
Comparative example 1
Substantially the same as in example 1, except that the reinforcing sheet 3 was not provided. Through test and analysis calculation, the ultimate tensile load of the connecting structure is 2072.3N, and the ultimate bending load is 307.3N.
Comparative example 2
Basically the same as the comparative example 1, except that the steel plate is not punched in the step 1, and the length of the connection of the steel plate and the composite material connecting plate is equal to the sum of the lengths of the third sub-connecting plate 23 and the second sub-connecting plate 22, namely, the connection is performed in a single lap joint mode. Through test and analysis calculation, the ultimate tensile load of the connecting structure is 3093.9N, and the ultimate bending load is 254.6N.
Comparative example 3
Basically the same as the embodiment 2, except that the steel plate and the composite material connecting plate are simultaneously punched at a connection angle of 45 degrees, and then the steel plate and the composite material connecting plate are connected by adopting a glue film in a bending connection mode without arranging a reinforcing sheet. The ultimate tensile load of the connection structure is 1838.2N and the ultimate bending load is 294.5N through test and analysis calculation.
Comparative example 4
Basically the same as example 1, except that the composite tie plates were replaced with steel plates, the ultimate tensile load of the joint structure was 4162.57N and the ultimate bending load was 261.9N as calculated by experiment and analysis.
Comparative example 5
Basically the same as example 2, except that the composite tie plates were replaced with steel plates, and the ultimate tensile load of the joint structure was 4786.7N and the ultimate bending load was 271.6N as calculated by experiment and analysis.
As can be seen from examples 1-6, the adhesively bonded joint structures of the present disclosure have high ultimate tensile load, ultimate bending load and compressive load carrying capacity, and increase with increasing joint angle.
As can be seen from comparison with comparative examples 1 to 3, the connection structure without the reinforcing sheet, the single lap connection structure, and the bent connection structure all reduce the ultimate tensile load and the ultimate bending load.
It can be seen from comparative examples 4 to 5 that the ultimate tensile load and ultimate bending load of the same material bonded do not increase with increasing connection angle, compared to dissimilar material bonded.
The composite material and metal material glue joint structure disclosed by the invention is simple in manufacturing process, low in cost and remarkable in effect, and has important guiding significance and engineering value for manufacturing high-performance composite material and metal material joint structures in the fields of automobiles, aerospace and the like.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A composite material and metal material bonding connection structure comprises a composite material connection plate (1), a metal connecting piece (2) and a reinforcing sheet (3), wherein the metal connecting piece (2) comprises a first sub-connection plate (21), a second sub-connection plate (22) and a third sub-connection plate (23) which is parallel to each other and arranged at intervals along the horizontal direction, the first sub-connection plate (21) and the second sub-connection plate (22) are connected, the first sub-connection plate (21) is arranged above the second sub-connection plate (22), the third sub-connection plate (23) is bonded with the first sub-connection plate (21) and the second sub-connection plate (22) in the length direction to form a connection angle α of 20-90 degrees, the composite material connection plate (1) is bonded with the second sub-connection plate (22) and the third sub-connection plate (23) through a first bonding layer (41), and the reinforcing sheet (3) is arranged above the first sub-connection plate (21) and the composite material connection plate (1) and is simultaneously connected with the first connection plate (21) and the second sub-connection plate (22) through a second bonding layer (42);
the composite material connecting plate (1) is made of a non-metal composite material.
2. The glued joint structure of claim 1, wherein the joint angle α is 45-90 °.
3. The glued joint structure according to claim 1, wherein the material of the metal connecting piece (2) is at least one selected from the group consisting of steel, aluminum alloy, magnesium alloy, and titanium alloy;
the composite material connecting plate (1) is made of a high polymer matrix fiber reinforced composite material, wherein the high polymer matrix is thermoplastic resin and/or thermosetting plastic, and the fiber is at least one selected from glass fiber, carbon fiber, aramid fiber and natural fiber.
4. The glued joint structure of claim 1, wherein the material of the first and second layers of glue (41, 42) is each independently epoxy and/or polyurethane; the material of the reinforcing sheet (3) is a polymer matrix fiber reinforced composite material, wherein the polymer matrix is thermoplastic resin and/or thermosetting plastic, and the fiber is at least one selected from glass fiber, carbon fiber, aramid fiber and natural fiber.
5. The adhesive joint structure according to claim 1, wherein the surface of the metal connecting member (2) contacting the first adhesive layer (41) and the second adhesive layer (42) is subjected to a surface treatment, wherein the surface treatment is at least one selected from the group consisting of mechanical grinding, sanding, shot peening, anodizing, acid treatment, laser etching, and plasma spraying.
6. A method for preparing a glue joint structure of a composite material and a metal material comprises the following steps:
a. preparing a metal connecting piece (2), wherein the metal connecting piece (2) comprises a first sub-connecting board (21), a second sub-connecting board (22) and a third sub-connecting board (23) which connects the first sub-connecting board (21) and the second sub-connecting board (22), the first sub-connecting board (21) is arranged above the second sub-connecting board (22), and a connecting angle α formed by the third sub-connecting board (23) and the first sub-connecting board (21) and the second sub-connecting board (22) in the length direction is 20-90 degrees;
b. the composite material connecting plate (1) is attached to the second sub-connecting plate (22) and the third sub-connecting plate (23) through a first adhesive layer (41); the composite material connecting plate (1) is made of a non-metal composite material;
c. and arranging a reinforcing sheet (3) above the first sub-connecting plate (21) and the composite material connecting plate (1) and simultaneously connecting the first sub-connecting plate (21) and the composite material connecting plate (1) through a second adhesive layer (42).
7. The production method according to claim 6, wherein the connection angle α is 45 to 90 °.
8. The production method according to claim 6, wherein the material of the metal connecting member (2) is at least one selected from steel, an aluminum alloy, a magnesium alloy, and a titanium alloy;
the composite material connecting plate (1) is made of a high polymer matrix fiber reinforced composite material, wherein the high polymer matrix is thermoplastic resin and/or thermosetting plastic, and the fiber is at least one selected from glass fiber, carbon fiber, aramid fiber and natural fiber.
9. A production method according to claim 6, wherein the materials of the first glue layer (41) and the second glue layer (42) are each independently epoxy resin and/or polyurethane; the material of the reinforcing sheet (3) is a polymer matrix fiber reinforced composite material, wherein the polymer matrix is thermoplastic resin and/or thermosetting plastic, and the fiber is at least one selected from glass fiber, carbon fiber, aramid fiber and natural fiber.
10. The manufacturing method according to claim 6, wherein, prior to step b, the surface of the metal connecting part (2) in contact with the first and second adhesive layers (41, 42) is subjected to a surface treatment, wherein the surface treatment is at least one selected from the group consisting of mechanical grinding, sanding, shot peening, anodizing, acid treatment, laser etching and plasma spraying.
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| CN201710607276.XA CN107323022B (en) | 2017-07-24 | 2017-07-24 | Adhesive joint structure of composite material and metal material and preparation method thereof |
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| CN201710607276.XA CN107323022B (en) | 2017-07-24 | 2017-07-24 | Adhesive joint structure of composite material and metal material and preparation method thereof |
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| CN108980160B (en) * | 2018-08-13 | 2024-01-30 | 西安增材制造国家研究院有限公司 | Connecting piece for composite material and application method thereof |
| CN109109328B (en) * | 2018-10-23 | 2020-09-25 | 哈尔滨工程大学 | Glue joint structure of composite material sandwich plate without bulges on surface and preparation method thereof |
| CN112360885A (en) * | 2020-10-19 | 2021-02-12 | 株洲时代新材料科技股份有限公司 | Shaft coupling |
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| CN103711764B (en) * | 2012-09-29 | 2016-06-22 | 北京汽车研究总院有限公司 | The attachment structure of a kind of composite connector and metal connecting piece and method |
| DE102013207206A1 (en) * | 2013-04-22 | 2014-10-23 | Voith Patent Gmbh | Pipe element with composite pipe and metal connector |
| CN103482019A (en) * | 2013-09-24 | 2014-01-01 | 中国船舶重工集团公司第七○二研究所 | Connection structure of composite material superstructure and steel hull |
| JP6515654B2 (en) * | 2014-12-18 | 2019-05-22 | 株式会社Ihi | Lap joint, method of manufacturing the same, and method of designing the same |
| CN205738044U (en) * | 2016-05-06 | 2016-11-30 | 哈尔滨飞机工业集团有限责任公司 | A kind of edge sealing structure of lead-covering aluminum honeycomb sandwich construction |
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2017
- 2017-07-24 CN CN201710607276.XA patent/CN107323022B/en active Active
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