CN111408659B - Method for forming laminated plate of middle discontinuous thin-wall metal member - Google Patents
Method for forming laminated plate of middle discontinuous thin-wall metal member Download PDFInfo
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- CN111408659B CN111408659B CN202010249492.3A CN202010249492A CN111408659B CN 111408659 B CN111408659 B CN 111408659B CN 202010249492 A CN202010249492 A CN 202010249492A CN 111408659 B CN111408659 B CN 111408659B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
- B21D35/007—Layered blanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/021—Deforming sheet bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
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Abstract
The invention belongs to the technical field of thin-wall metal component forming and manufacturing, and provides a laminated plate forming method of a middle discontinuous thin-wall metal component, which comprises the following steps: constructing characteristic analysis; determining a process scheme; designing an original blank and a die tool; determining and preparing a coating plate blank; pre-punching an original blank; combining laminated plate blanks; forming a laminated plate blank; decomposing the laminated plate blank; and (5) performing post-treatment on the thin-wall metal component. The invention has lower requirement on punching equipment, and avoids the problem that a special numerical control machine and a matched online measurement and feedback system are required when the middle blank with the complex shape is processed and formed by CNC (computerized numerical control) cutting or laser cutting. In addition, when the special-shaped hole is prepared, a numerical control machine tool is not needed, and the problem that the intermediate blank generates uncontrollable deformation due to the release of residual stress on the intermediate blank when the numerical control method is adopted to cut the special-shaped hole in the three-dimensional space on the intermediate blank with a complex shape is solved.
Description
Technical Field
The invention belongs to the technical field of thin-wall metal component forming and manufacturing, and particularly relates to a method for forming a laminated plate of a middle discontinuous thin-wall metal component.
Background
The thin-wall metal member is very common in the fields of aerospace, automobiles, high-speed rails and the like, can bear complex external loads, and can also play roles in shielding, heat insulation, heat preservation and the like. According to different use and service conditions, corresponding metal structure materials such as aluminum alloy, magnesium alloy, titanium alloy, stainless steel and the like are required to be selected. In order to withstand complex external loads or to achieve connections with other adjacent components, thin-walled metal components are often designed in very complex three-dimensional shapes and provided with profiled holes in the local area for connection assembly, which are round, square or more generally shaped.
The forming and manufacturing of thin-wall metal components with special-shaped holes currently mainly comprises two steps: (1) forming the external integral shape; (2) and (4) processing a local special-shaped hole. The machining of the partially shaped hole is generally performed on an intermediate blank after obtaining the external overall shape. When the special-shaped holes are regular in shape and are located on the open side or the bottom surface of the intermediate blank, the special-shaped holes can be processed by adopting a traditional blanking method and the like. For such simple cases, the forming of the external overall shape and the machining of the partially irregular holes can be completed on the same set of die in sequence to improve the production efficiency. However, more shaped holes are located in the non-open areas of the thin-walled metal component, which is difficult or impossible to process using conventional punching methods and punching equipment. In this case, it is necessary to perform machining of the irregular hole in the three-dimensional space by using a numerical control machining method such as CNC numerical control cutting, laser cutting, and the like.
When a numerical control method is adopted to process a special-shaped hole in a three-dimensional space, the following problems or difficulties can occur: (1) CNC cutting or laser cutting needs to adopt a special numerical control machine and a matched online measurement and feedback system, and has high requirements on equipment; (2) in order to ensure that the external shape of the component can not change due to the action of local cutting force, local expansion with heat and contraction with cold and the like during cutting, a special cutting tool needs to be manufactured to fix the component, and the processing and use of the cutting tool can greatly reduce the processing efficiency and improve the production cost; (3) when the special-shaped holes are formed in the side surfaces and the bottom surface of the middle blank, the cutting tool and the middle blank need to be turned and positioned in space for multiple times, so that the production efficiency is reduced, and the tool precision requirement is greatly improved; (4) when the original blank is formed into an intermediate blank with a complex shape, complex residual stress exists due to uneven local deformation, and the intermediate blank generates uncontrollable deformation due to the release of the residual stress when a special-shaped hole is cut; (5) the shape and size accuracy of the intermediate blank inevitably has certain deviation or inconsistency, and the situation that the accuracy of the special-shaped hole is insufficient or even the special-shaped hole is not sufficiently cut can occur when the special-shaped hole in the three-dimensional space is cut.
In order to solve the problems that when a thin-wall metal component with special-shaped holes is manufactured at present, the external overall shape and the local special-shaped holes are formed by two independent steps, so that high requirements are put on equipment and die tools, the production efficiency is reduced, the production cost is obviously improved, the appearance shape of the component is changed in a complex way, the quality of the cut special-shaped holes is not satisfactory, and the like, serious quality problems are caused, and a novel thin-wall metal component forming method needs to be developed.
Disclosure of Invention
The invention aims to provide a method for forming a thin-wall metal component with a discontinuous middle part and a special-shaped hole, which can solve the serious quality problems that the prior forming technology adopts two mutually independent steps to form an external integral shape and a local special-shaped hole, so that high requirements are put forward on equipment and a die tool, the production efficiency is reduced, the production cost is obviously improved, the appearance shape of the component is changed in a complex way, the quality of the cut special-shaped hole is not met, and the like.
The technical scheme of the invention is as follows:
the forming method of the laminated plate of the discontinuous thin-wall metal component in the middle part comprises the following steps:
step one, component characteristic analysis: analyzing the characteristics of the thin-wall metal component with the special-shaped hole to obtain the geometric characteristics, manufacturability and interrelation of the external overall shape and the local special-shaped hole;
step two, determining a process scheme: according to the characteristic analysis result of the step one, preliminarily determining the laminated plate forming process of the thin-wall metal component appearance and the local special-shaped hole;
step three, designing an original blank and a die tool: determining the material and the outline shape of the original blank and the position and the shape of the pre-punched hole by using an FEM reverse simulation and blank unfolding calculation method according to the analysis results of the first step and the second step, and designing a die by using a theoretical calculation or simulation method;
step four, determination and preparation of the clad plate blank: determining the material and outline size of the upper cladding plate blank and the lower cladding plate blank according to the material characteristics of the original plate blank and the deformation coordination between the original plate blank and the cladding plate blank, wherein the section size of the cladding plate blank is consistent with the size of the original plate blank, and blanking;
step five, pre-punching on the original blank: according to the contour dimension of the pre-punched hole determined by theoretical calculation or simulation method in the third step, blanking preparation is carried out, and a plurality of required special-shaped holes are prepared on the original blank;
step six, combining the laminated slabs: pretreating the surfaces of the upper cladding plate blank and the lower cladding plate blank obtained in the step four to increase the connection strength with the original plate blank, and then combining, bonding and positioning the upper cladding plate blank, the original plate blank with the pre-punched holes and the lower cladding plate blank in sequence to obtain the required laminated plate blank;
step seven, forming the laminated plate blank: placing the combined laminated plate blank on a forming die, introducing a high-pressure medium into a closed cavity formed by an upper die and an upper cladding plate, and integrally forming the laminated plate blank under the action of the high-pressure medium to enable the laminated plate blank to expand and attach to a die cavity to obtain a required outline;
step eight, decomposing the laminated plate blank: after the laminated plate blank is integrally formed, releasing a high-pressure medium through a medium channel, reducing the pressure inside or on the surface of the part to a set value, then opening a mold, taking out the expanded laminated plate blank, removing the upper and lower coating plate blanks, and decomposing the integrally formed laminated plate blank to obtain a middle thin-wall metal component;
ninth, thin-wall metal member post-treatment: and (3) carrying out necessary cleaning and polishing on the formed thin-wall metal component or removing local process materials by using a numerical control machine tool to obtain the final thin-wall metal component.
The invention has the beneficial effects that:
the invention relates to a laminated plate forming method of a middle discontinuous thin-wall metal component, which is characterized in that when a special-shaped hole is prepared, only a hole needs to be pre-punched on an original blank, then the original blank is integrally formed on a die, the requirement on hole punching equipment is obviously reduced, and the problem that when a middle blank with a complex shape is formed by CNC cutting or laser cutting, a special numerical control machine and an on-line measurement and feedback system matched with the numerical control machine are needed is solved.
According to the laminated plate forming method of the discontinuous middle thin-wall metal component, only the original blank needs to be pre-punched when the special-shaped hole is prepared, and then the whole forming is carried out on the die, so that the problem that a special cutting tool needs to be manufactured to fix a workpiece to ensure that the external shape of the component does not change due to the action of local cutting force, local thermal expansion and cold contraction and the like when the special-shaped hole is processed by adopting a numerical control processing method is solved, the processing efficiency is greatly improved, and the production cost is reduced.
And thirdly, when the plurality of side surfaces and the bottom surface of the middle blank need to be provided with special-shaped holes, the original blank is only required to be pre-punched, and then the integral forming is carried out on a die. The method can avoid the problem that the cutting tool and the intermediate blank need to be turned and positioned in space for multiple times when the intermediate blank with the complex shape is processed by adopting a numerical control processing method, and greatly improves the production efficiency.
The laminated plate forming method of the middle discontinuous thin-wall metal component only needs to pre-punch holes on an original blank when preparing the special-shaped holes, and then carries out integral forming on a die. The method can avoid the problem that the intermediate blank generates uncontrollable deformation due to the release of residual stress on the intermediate blank when a numerical control method is adopted to cut a special-shaped hole in a three-dimensional space on the intermediate blank with a complex shape.
And fifthly, according to the laminated plate forming method of the middle discontinuous thin-wall metal component, when the special-shaped hole is prepared, only the original blank needs to be pre-punched, and then the integral forming is carried out on the die. The method can avoid the problem that when a numerical control machining method is adopted to cut the special-shaped hole in the three-dimensional space on the middle blank with the complex shape, the precision of the cut special-shaped hole is insufficient or even insufficient due to the deviation or inconsistency of the shape and size precision of the middle blank.
Drawings
FIG. 1 is a schematic diagram of a method of forming a laminate of thin-walled metal members having discrete central sections according to the present invention.
Fig. 2 is a schematic view of a pre-punched hole of an original slab of the present invention.
Fig. 3 is a schematic view of the assembly of the laminated slab of the present invention. Figure 3(a) shows a three-layer slab assembly,
fig. 3(b) shows a two-layer slab assembly.
Figure 4 is a schematic view of the formation of a laminated slab of the present invention.
FIG. 5 is a schematic view of the thin-walled metal component post-processing of the present invention.
In the figure: the method comprises the following steps of 1 original slab, 2 pre-punching, 3 upper cladding slab, 4 lower cladding slab, 5 medium channel, 6 laminated slab, 7 upper die, 8 lower die, 9 special-shaped hole and 10 sheet metal forming piece.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
Example 1: the method for forming a laminated plate of a discontinuous thin-walled metal member in the middle part according to the present invention is described with reference to fig. 1, 2, 3, 4 and 5, and is performed according to the following steps:
step one, component characteristic analysis: analyzing the characteristics of the thin-wall metal component with the special-shaped hole to obtain the geometric characteristics, manufacturability and interrelation of the external overall shape and the local special-shaped hole;
step two, determining a process scheme: according to the characteristic analysis result of the step one, preliminarily determining the laminated plate forming process of the thin-wall metal component appearance and the local special-shaped hole;
step three, designing an original blank and a die tool: determining the material and the outline shape of the original blank and the position and the shape of the pre-punched hole by using an FEM reverse simulation and blank unfolding calculation method according to the analysis results of the first step and the second step, and designing the structure and the size of the die by using a theoretical calculation or simulation method;
step four, determination and preparation of the clad plate blank: determining the material and outline size of the upper cladding plate blank and the lower cladding plate blank according to the material characteristics of the original plate blank and the deformation coordination between the original plate blank and the cladding plate blank, wherein the cross section size of the cladding plate blank is consistent with the size of the original plate blank so as to be beneficial to synchronous deformation, and the blank is cut by a blank cutting machine or is punched by a blanking die to prepare the blank;
step five, pre-punching on the original blank: according to the contour dimension of the pre-punched hole determined by theoretical calculation or simulation in the third step, cutting by using a blank cutting machine or punching by using a punching die, and preparing a plurality of required special-shaped holes on the original blank;
step six, combining the laminated slabs: pretreating the surfaces of the upper cladding plate blank and the lower cladding plate blank obtained in the step four to increase the connection strength with the original plate blank, and then combining, bonding and positioning the upper cladding plate blank, the original plate blank with the pre-punched holes and the lower cladding plate blank in sequence to obtain the required laminated plate blank;
step seven, forming the laminated plate blank: placing the combined laminated plate blank on a forming die, introducing a high-pressure medium into a closed cavity formed by an upper die and the upper cladding plate blank through a medium channel by a high-pressure pump source, and integrally forming the laminated plate blank under the action of the pressure medium to enable the laminated plate blank to expand and attach to a die cavity to obtain a required outline;
step eight, decomposing the laminated plate blank: releasing pressure media through a medium channel after the integral forming of the laminated plate blank is finished, reducing the pressure inside or on the surface of the part to a set value, then opening a mold, taking out the expanded laminated plate blank, removing the upper and lower coating plate blanks, and decomposing the integrally formed laminated plate blank to obtain a middle thin-wall metal component;
ninth, thin-wall metal member post-treatment: and (3) carrying out necessary cleaning and polishing on the formed thin-wall metal component or removing local process materials by using a numerical control machine tool to obtain the final thin-wall metal component.
The beneficial effect of this embodiment is: according to the laminated plate forming method of the discontinuous thin-wall metal component in the middle, when a special-shaped hole is prepared, only the original blank needs to be pre-punched, then the whole forming is carried out on the die, the requirement on punching equipment is obviously reduced, and the problems that when the middle blank with the complex shape is formed by CNC (computerized numerical control) cutting or laser cutting machining, a special numerical control machine and an online measurement and feedback system matched with the numerical control machine are needed are solved; the method can avoid the problem that a special cutting tool needs to be manufactured to fix the workpiece in order to ensure that the external shape of the component does not change due to the action of local cutting force, local expansion with heat and contraction with cold by adopting a numerical control processing method, greatly improves the processing efficiency and reduces the production cost; the method can avoid the problems that a cutting tool and the intermediate blank need to be turned and positioned in space for multiple times when a numerical control machining method is adopted to machine the intermediate blank with a complex shape, and greatly improves the production efficiency; the method can avoid the problem that the intermediate blank is uncontrollably deformed due to the release of residual force when a numerical control method is adopted to cut a special-shaped hole in a three-dimensional space on the intermediate blank with a complex shape; the method can avoid the problem that when a numerical control machining method is adopted to cut the special-shaped hole in the three-dimensional space on the middle blank with the complex shape, the precision of the cut special-shaped hole is insufficient or even insufficient due to the deviation or inconsistency of the shape and size precision of the middle blank.
Example 2: referring to fig. 3, in the second step, the overlapping mode of the original slab and the clad slab is adjusted according to the material of the original slab and the external overall shape of the component, and when the extension performance of the original slab is not good, the upper and lower clad slabs with good comprehensive performance are selected and combined by adopting three slabs; when the original slab had good elongation properties and the outer overall shape of the member was easily formed, a two-layer slab combination was used, and the lower clad slab was made of a material having a general combination of properties, and the other steps were the same as in example 1.
The beneficial effect of this embodiment is: according to the material of the original plate blank and the external integral shape of the component, the material of the coating plate blank and the overlapping mode are selected, the utilization rate of the material can be greatly improved, the production cost is reduced, the processing efficiency is improved, and the bulging capacity of the original plate blank is favorably improved through the auxiliary forming of the coating plate blank.
Example 3: referring to fig. 2, in step three, the forming result of the plate blank with the special-shaped holes and the forming result of the plate blank without the special-shaped holes are compared through finite element simulation, so that the shapes and the sizes of the original plate blank and the pre-punched holes are reversely designed, the test parameters are adjusted, the deformation of the special-shaped holes is beneficial deformation, and other steps are the same as those of the example 1.
The beneficial effect of this embodiment is: when the forming of the special-shaped hole has influence on the forming of the external integral shape, the original plate blank and the shape and the size of the pre-punched hole can be reversely designed, and experimental parameters are adjusted, so that the special-shaped hole and the external integral shape can be formed simultaneously in one-step forming, secondary processing is avoided, the integrity of the material structure is favorably ensured, and the stress distribution in the material is more uniform.
Example 4: referring to fig. 2, in the third step, the selected material of the original slab was 2219 aluminum alloy, the thickness was 1.8mm, the external dimensions were 200mm diameter circle, the pre-punching holes were 30mm diameter circle, the position was determined according to the simulation and calculation results, and other steps were the same as example 1.
The beneficial effect of this embodiment is: the 2219 aluminum alloy is a light high-strength alloy, and is mainly used for manufacturing large carrier rocket fuel storage tanks in the aerospace field due to good low-temperature mechanical property, fracture toughness, welding property and stress corrosion resistance, pre-punching is helpful for avoiding the problems that multiple times of turning and space positioning are needed to be carried out on a cutting tool and an intermediate blank when a special-shaped hole is processed after integral forming, and the special-shaped hole is processed only by pre-punching on an original plate blank and then integrally forming on a forming die.
Example 5: referring to fig. 3(a), in the sixth step, the material of the upper and lower clad slabs is 1Cr18Ni9Ti stainless steel plate with a thickness of 1mm, and the external dimension is 200mm circle with the same diameter as the original slab, and other steps are the same as example 1.
The beneficial effect of this embodiment is: the 1Cr18Ni9Ti has good comprehensive performance, high plasticity and toughness, high elongation, area shrinkage and impact value, 40% elongation of 1Cr18Ni9Ti, reduced two-way tensile stress at the top and bottom of the original plate blank through the upper and lower stainless steel clad plate blanks, reduced stress and strain gradient in the deformation area of the original plate blank, more uniform stress and strain distribution in the whole bulging area, more uniform bulging deformation, and effectively improved bulging capacity of the original plate blank through the auxiliary forming of the stainless steel clad plate blank, and the size of the clad plate blank is consistent with that of the original plate blank and is beneficial to the synchronism of deformation.
Example 6: referring to fig. 3(a), in the sixth step, the surfaces of the upper and lower clad slabs are roughened, and the upper, original and lower clad slabs are combined, bonded and positioned in sequence by using JL-6218 metal-bonded metal plastic glue to obtain the required laminated slab, and other steps are the same as in example 1.
The beneficial effect of this embodiment is: JL-6218 metal glues metal plastic glue for novel transparent solution of single-component glues, room temperature curing, convenient operation, have characteristics such as high strength, high elastic shape, glued membrane softness, water-fast, alkaline performance are good, in addition, grind rough treatment to coating slab surface, can strengthen the bonding effect, be favorable to fixing a position to the position precision in dysmorphism hole has been guaranteed.
Example 7: and referring to fig. 4, in a seventh step, the laminated slab is placed in a forming mold to be sealed to form a sealed cavity, a high-pressure liquid medium is introduced into the sealed cavity formed by the upper mold and the upper cladding slab through a medium channel, the laminated slab is integrally formed under the action of liquid pressure, so that the laminated slab expands and is attached to a mold cavity to obtain a required outline, and other steps are the same as those in the example 1.
The beneficial effect of this embodiment is: when the laminated plate blank is formed, high-pressure liquid is used as a force transmission medium to replace a traditional rigid male die, so that the friction between materials is reduced, the surface quality of parts is improved, the die design is simplified, the production cost is reduced, the liquidity of the liquid is good, the pressure is equal everywhere, and the laminated plate blank is mainly used for forming parts with complex shapes.
Example 8: referring to fig. 4, in step eight, after the laminated plate blank is formed, the mold is heated to 200-300 ℃ by a high-frequency induction device to reach the melting point of 130 ℃ of the JL-6218 metal-bonded metal plastic glue, so that the laminated plate blank is decomposed, and then the upper and lower coated plate blanks are removed to obtain an intermediate thin-walled metal member, and other steps are the same as those of example 1.
The beneficial effect of this embodiment is: and heating the die to a temperature higher than the melting point of the metal-plastic adhesive to melt the metal-plastic adhesive, and decomposing the laminated plate blank to obtain the intermediate thin-wall metal component. In addition, the integral forming and the decomposition of the laminated plate blank are carried out in the same set of die in sequence, so that the production procedures can be reduced, and the production efficiency can be effectively improved.
Example 9: as explained with reference to fig. 5, in step nine, the obtained special-shaped hole of the thin-walled metal member was subjected to secondary finishing by a numerically controlled machine tool after forming, and the other steps were the same as in example 1.
The beneficial effect of this embodiment is: the finish machining is the last procedure of the workpiece process, the feeding amount is small during finish machining, the dimensional accuracy and the surface roughness of the part are easy to control, and therefore the special-shaped hole meeting the requirements of dimensional accuracy and surface quality can be obtained during secondary finish machining of the special-shaped hole with higher accuracy requirement.
Claims (1)
1. A method for forming a laminate of thin-walled metal members having discontinuous central portions, comprising the steps of:
step one, component characteristic analysis: analyzing the characteristics of the thin-wall metal component with the special-shaped hole to obtain the geometric characteristics, manufacturability and interrelation of the external overall shape and the local special-shaped hole;
step two, determining a process scheme: according to the characteristic analysis result of the step one, preliminarily determining the laminated plate forming process of the thin-wall metal component appearance and the local special-shaped hole;
step three, designing an original blank and a die tool: determining the material and the outline shape of the original blank and the position and the shape of the pre-punched hole by using an FEM reverse simulation and blank unfolding calculation method according to the analysis results of the first step and the second step, and designing a die by using a theoretical calculation or simulation method;
step four, determination and preparation of the clad plate blank: determining the material and outline size of the upper cladding plate blank and the lower cladding plate blank according to the material characteristics of the original plate blank and the deformation coordination between the original plate blank and the cladding plate blank, wherein the section size of the cladding plate blank is consistent with the size of the original plate blank, and blanking;
step five, pre-punching on the original blank: according to the contour dimension of the pre-punched hole determined by theoretical calculation or simulation method in the third step, blanking preparation is carried out, and a plurality of required special-shaped holes are prepared on the original blank;
step six, combining the laminated slabs: pretreating the surfaces of the upper cladding plate blank and the lower cladding plate blank obtained in the step four to increase the connection strength with the original plate blank, and then combining, bonding and positioning the upper cladding plate blank, the original plate blank with the pre-punched holes and the lower cladding plate blank in sequence to obtain the required laminated plate blank;
step seven, forming the laminated plate blank: placing the combined laminated slab on a forming die, introducing a high-pressure medium into a closed cavity formed by an upper die and the upper cladding slab, and integrally forming the laminated slab under the action of the high-pressure medium to enable the laminated slab to expand and attach to a die cavity to obtain a required outline;
step eight, decomposing the laminated plate blank: after the laminated plate blank is integrally formed, releasing a high-pressure medium through a medium channel, reducing the pressure inside or on the surface of the part to a set value, then opening the mold, taking out the expanded laminated plate blank, removing the upper and lower coating plate blanks, and decomposing the integrally formed laminated plate blank to obtain a middle thin-wall metal component;
ninth, thin-wall metal member post-treatment: and (3) carrying out necessary cleaning and polishing on the formed thin-wall metal component or removing local process materials by using a numerical control machine tool to obtain the thin-wall metal component with discontinuous middle part.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0452541A2 (en) * | 1990-04-14 | 1991-10-23 | W.C. Heraeus GmbH | Method of manufacturing hollow objects from tantalum |
| CN101422797A (en) * | 2007-10-31 | 2009-05-06 | 中国科学院金属研究所 | Metal sheet forming method |
| CN103551443A (en) * | 2013-10-30 | 2014-02-05 | 上海理工大学 | Liquid filling and deep drawing die and liquid filling and deep drawing method thereof |
| CN104722636A (en) * | 2015-03-31 | 2015-06-24 | 绵阳市川金机械制造有限公司 | Punch forming process of three-layer thermal shield |
| CN107597966A (en) * | 2017-10-11 | 2018-01-19 | 南京工程学院 | A kind of pneumatic hot forming process for quenching of unimach complex component and device |
-
2020
- 2020-04-01 CN CN202010249492.3A patent/CN111408659B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0452541A2 (en) * | 1990-04-14 | 1991-10-23 | W.C. Heraeus GmbH | Method of manufacturing hollow objects from tantalum |
| CN101422797A (en) * | 2007-10-31 | 2009-05-06 | 中国科学院金属研究所 | Metal sheet forming method |
| CN103551443A (en) * | 2013-10-30 | 2014-02-05 | 上海理工大学 | Liquid filling and deep drawing die and liquid filling and deep drawing method thereof |
| CN104722636A (en) * | 2015-03-31 | 2015-06-24 | 绵阳市川金机械制造有限公司 | Punch forming process of three-layer thermal shield |
| CN107597966A (en) * | 2017-10-11 | 2018-01-19 | 南京工程学院 | A kind of pneumatic hot forming process for quenching of unimach complex component and device |
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| CN111408659A (en) | 2020-07-14 |
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