CN116441938A - Stamping forming method of metal cavity structure - Google Patents
Stamping forming method of metal cavity structure Download PDFInfo
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- CN116441938A CN116441938A CN202310443548.2A CN202310443548A CN116441938A CN 116441938 A CN116441938 A CN 116441938A CN 202310443548 A CN202310443548 A CN 202310443548A CN 116441938 A CN116441938 A CN 116441938A
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- metal cavity
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- cavity structure
- cavity
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 167
- 239000002184 metal Substances 0.000 title claims abstract description 167
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 9
- 238000004512 die casting Methods 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 25
- 238000005238 degreasing Methods 0.000 claims description 13
- 239000007888 film coating Substances 0.000 claims description 13
- 238000009501 film coating Methods 0.000 claims description 13
- 238000005554 pickling Methods 0.000 claims description 11
- 238000002791 soaking Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 9
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 3
- 238000005237 degreasing agent Methods 0.000 claims description 3
- 239000013527 degreasing agent Substances 0.000 claims description 3
- 235000019253 formic acid Nutrition 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000008595 infiltration Effects 0.000 claims 1
- 238000001764 infiltration Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004080 punching Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a stamping forming method of a metal cavity structure, which comprises the following steps: s1, firstly, cutting through a plate according to a preset drawing; s2, heating the first metal cavity formed by cutting and then stamping; s3, placing the cut and formed second metal cavity blank in an integral die casting machine for stamping operation, cold stamping to obtain a cavity structure with a concave middle part, wherein the periphery of the formed second metal cavity is a raised edge, and then conducting secondary stamping on a top panel of the second metal cavity to enable the top panel of the second metal cavity to be raised upwards continuously; and S4, stamping the cut and formed reinforcing rib piece, and enabling the formed reinforcing rib piece and the bottom position of the first metal cavity to be mutually attached. After being respectively punched, the novel steel plate is welded, so that the overall structural strength is guaranteed, and the novel steel plate can form a sufficient protection effect on the contained objects.
Description
Technical Field
The invention belongs to the technical field of stamping forming, and particularly relates to a stamping forming method of a metal cavity structure.
Background
The new energy electric car is a traffic tool which uses electric energy to replace fossil energy to realize driving. The pure electric automobile without environmental pollution is also gradually replacing the traditional automobile industry.
Generally, a new energy electric car mainly comprises two main driving force components, namely a motor and a battery, wherein the durability of the motor of the driving force component is an important key for driving the electric car, meanwhile, the electric storage of the battery is also ensured to ensure long-time running of the car, the safety of the battery is ensured when the battery is ensured to be in continuous voyage for a long time, and unnecessary destructive damage caused by the change of the inside of the battery due to extrusion deformation of the battery when the battery is collided is avoided.
In order to ensure the effectiveness of the battery, a layer of battery box is generally wrapped on the periphery of the battery to serve as a battery box for bearing the battery, and the battery box integrally forms a complete package for the battery, so that when the battery is impacted, the battery is protected in a full range, and chemical reaction (chemical combustion or explosion) caused by leakage of chemical substances in the battery due to deformation caused by the impact is avoided;
however, the structure of the battery box is simple, and most of the whole structure is formed by welding various components, and the battery box can be used as a bearing cavity of a battery, and is subjected to external direct stamping, so that the simple welding mode is extremely easy to cause frame scattering, thereby influencing the safety of a battery assembly borne inside.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a stamping forming method of a metal cavity structure, which solves the technical problems existing in the prior art.
The aim of the invention can be achieved by the following technical scheme:
a stamping forming method of a metal cavity structure comprises the following steps:
s1, firstly, cutting a plate according to a preset drawing, and obtaining a blank after cutting; wherein the blank is a metal piece;
s2, heating the cut metal part blank to 150-1200 ℃, placing the metal part blank in a die casting machine for stamping operation, and stamping to enable the metal part to integrally form a cavity structure with a concave middle part to form a first metal cavity;
s3, taking another group of metal parts, heating the cut and formed metal part blank to 150-1200 ℃, placing the metal part blank in a die casting machine for stamping operation, hot stamping to obtain a cavity structure with a concave middle part, forming raised edges on the periphery, and then secondarily stamping the top panel of the metal part to enable the top panel of the metal part to continuously rise upwards for the second time and form raised bulges to form a second metal cavity;
s4, heating the cut and formed metal piece to 150-1200 ℃ and performing stamping forming to form a reinforcing rib piece, and enabling the formed metal piece and the bottom of the first metal cavity to be mutually attached;
the first metal cavity and the second metal cavity form a complete accommodating cavity structure.
Further, before the first metal cavity, the second metal cavity and the reinforcing rib piece are punched, the first metal cavity, the second metal cavity and the reinforcing rib piece are heated to 130-250 ℃, then the bent part is coated with lubricating liquid, and finally the punching mode is adopted for punching forming.
Further, before the first metal cavity and the reinforcing rib piece in the step S4 are welded, pickling solution is adopted for soaking, the soaking temperature is controlled to be 55-58 ℃, the soaking temperature is controlled to be 20-30min, the steel is taken out, degreasing treatment is carried out by adopting degreasing agent, and finally, clean water is adopted for cleaning and then cold air drying is carried out;
the welding operation is carried out in an inert gas environment.
Furthermore, the pickling solution is prepared by mixing sodium tripolyphosphate, formic acid and a surfactant according to the mass percentage ratio of 15:13:4:1, and the pH value of the mixed solution is regulated to be lower than 2.5.
Further, the soaking time of the acid washing and degreasing treatment is 20-30min, and the degreasing treatment temperature is controlled below 25 ℃.
Further, the whole first metal cavity is of a frame structure, the first metal cavity comprises top corners at four corners and a panel at the middle part, and an annular edge turned outwards is arranged at the periphery of the panel at the middle part, so that the annular edge wraps the periphery of the panel and forms an inwards concave cavity structure;
the reinforcing rib piece is positioned at the lower part and the side edge of the first metal cavity and fixed, and a film coating layer is respectively attached to the inner side and the outer side of the formed first metal cavity, so that the film coating layer wraps the inner layer and the outer layer of the formed first metal cavity;
the second metal cavity is positioned at the upper position of the first metal cavity, and the second metal cavity and the first metal cavity are mutually hinged and matched to form a cavity structure with a hollowed-out middle part integrally.
Further, the width of the two end parts where the reinforcement piece is located is smaller than the width of the two end parts where the first metal cavity is located.
Further, a plurality of groups of through holes are formed in the inner wall of the first metal cavity, and the upper surface and the lower surface of the through holes are covered by the film coating layer.
Further, the reinforcing rib pieces are provided with a plurality of groups and are arranged along the width direction of the first metal cavity.
Further, the outer edges of the edge positions of the first metal cavity and the second metal cavity extend outwards, and connecting holes are formed in the outer edges, so that when the first metal cavity and the second metal cavity cover each other, the connecting holes at the upper and lower positions are matched with each other, and the connecting holes penetrate through the bolt pieces and are fixed.
The invention has the beneficial effects that:
1. the first metal cavity, the second metal cavity and the reinforcing rib piece are respectively punched independently, and then are assembled and formed after punching is finished, so that the integral structural strength is ensured, and the bearing object can be fully protected when being loaded.
2. The first metal cavity and the second metal cavity adopted by the invention are integrally formed in a stamping state, so that the compression strength, the tensile strength and the shear strength of the first metal cavity and the second metal cavity are improved, and the impact strength with high hardness can be kept unchanged.
3. When the first metal cavity and the reinforcing ribs are welded and reinforced, the acid washing and water washing processes are adopted, so that the surface oxide layer can be effectively removed, the film coating layers are synchronously covered, the film coating layers are convenient to attach, the outer layer can be isolated from continuously oxidizing the first metal cavity for the second time, and the service life of the whole device is prolonged.
4. To the first metal cavity and the second metal cavity among this application all adopt heating earlier and stamping out the mode again, this kind of mode can increase the ductility of waiting stamping workpiece metal surface, and convenient machine-shaping is material pile thickness in the product structure obtains fully guaranteeing simultaneously, satisfies the inconsistent processing condition of thickness in different regional positions of different sizes.
5. To the secondary punching press that adopts in this application, can satisfy the difficult one shot forming's of its opposite sex face of different product pieces problem, when guaranteeing overall structure intensity, carry out the secondary punching press in local position, greatly reduced the process of whole work piece transportation process, can produce and process the structure size that main structure opposite sex face is more complicated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic overall structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a first metal cavity in a stamped state structure according to an embodiment of the invention;
FIG. 3 is a schematic view of a first metal cavity cut state structure according to an embodiment of the present invention;
FIG. 4 is a schematic view of the final forming structure of a first metal cavity according to an embodiment of the present invention;
FIG. 5 is a schematic view showing a first-step stamping state of a second metal cavity according to an embodiment of the present invention;
FIG. 6 is a schematic view showing a second step stamping state of a second metal cavity according to an embodiment of the present invention;
fig. 7 is a schematic view of a press forming structure of a reinforcing rib according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-7, the embodiment of the invention provides a sheet metal stamping cavity structure, which comprises a first metal cavity 1, a second metal cavity 2 and a reinforcing rib member 3, wherein the first metal cavity 1 is of a frame structure as a whole, the first metal cavity 1 comprises a top corner 11 at a four corner position and a panel 12 at the middle part, an annular edge 102 turned outwards is arranged at the peripheral position of the panel 12 at the middle part, and the annular edge 102 wraps the periphery of the panel 12 and forms an inwards concave cavity structure; the structure can realize that the cavity formed in the middle part forms a compression-resistant whole, the reinforcing rib pieces 3 are positioned at the lower part and the side edges of the first metal cavity 1 and fixed (a plurality of groups of reinforcing rib pieces 3 are arranged along the width direction of the first metal cavity 1 so as to cope with the transverse direct impact force), and meanwhile, a layer of film coating layer 4 is respectively adhered to the inner side and the outer side of the formed first metal cavity 1, so that the film coating layer 4 wraps the inner layer and the outer layer of the formed first metal cavity 1;
the second metal cavity 2 is located at the upper part where the first metal cavity 1 is located, and is connected through hinge, meanwhile, the second metal cavity 2 and the first metal cavity 1 form a containing cavity structure with hollowed middle parts, the width of two end parts where the reinforcement piece 3 is located is smaller than that of two end parts where the first metal cavity 1 is located, a plurality of groups of through holes 101 are formed in the inner wall where the first metal cavity 1 is located, and the upper surface and the lower surface where the through holes 101 are located are covered by the film coating layer 4.
The outer edge 103 at the edge position of the first metal cavity 1 and the second metal cavity 2 extends outwards, and the outer edge 103 is provided with a connecting hole 104, so that when the first metal cavity 1 and the second metal cavity 2 are mutually covered, the connecting holes 104 at the upper and lower positions are mutually matched and fixed after being penetrated by bolt pieces, the structural strength of the first metal cavity 1 and the second metal cavity 2 cannot be influenced by the fixing mode, but the fixing operation can be directly carried out by adopting the bolt fixing mode.
The embodiment of the invention provides a stamping forming method based on sheet metal parts, which comprises the following steps of:
s1, firstly, cutting a plate according to a preset drawing, and obtaining a blank after cutting; the blank comprises a first metal cavity 1, a second metal cavity 2 and a reinforcing rib member 3 (the state at the moment is a panel material state and is an integrated structure).
S2, heating the blank of the first metal cavity 1 subjected to cutting forming to 150-1200 ℃, placing the blank in an integral die casting machine for stamping operation, bending four supporting legs 11 of the first metal cavity 1 upwards by stamping, enabling the whole first metal cavity 1 to form a cavity structure with a concave middle part, then penetrating through a plurality of through holes 101 on a bottom panel 12 where the first metal cavity 1 is located, and setting the through holes 101, so that when the first metal cavity 1 and the second metal cavity 2 are assembled, the battery (or other bearing objects are all in the protection range of the application) in the internal cavity can be effectively cooled in time, and the situation that the performance of the battery is not timely influenced due to heat dissipation is avoided, so that irreversible damage to the battery is caused, and the endurance and the service life of the battery are reduced. Meanwhile, the annular protruding edge 102 protruding upwards is formed at the outer edge position of the position between the top angle 11 and the middle panel 12, so that the middle panel 12 and the annular protruding edge 102 form an inwards concave cavity, secondary welding is avoided when the structure is formed, and the integral compressive strength is improved.
S3, heating the blank of the second metal cavity 2 which is cut and formed to 150-1200 ℃, placing the blank in an integral die casting machine (an oil press can be adopted) for stamping operation, hot stamping to obtain a cavity structure with a concave middle part, forming the periphery of the second metal cavity 2 into a raised edge, and then conducting secondary stamping on the top panel of the second metal cavity 2, so that the top panel of the second metal cavity 2 continuously rises upwards to form a raised bulge 201, wherein the size and the size of the bulges 201 of different types can be changed very well. Multiple groups of through holes are formed in the side edge of the second metal cavity 2 for rapid heat dissipation according to requirements.
S4, heating the cut and formed reinforcing rib piece 3 to 150-1200 ℃, and performing stamping forming to enable the formed reinforcing rib piece 3 and the bottom position of the first metal cavity 1 to be mutually attached; before the first metal cavity 1 and the reinforcing ribs 3 are welded, pickling solution is adopted for soaking, the soaking temperature is controlled to be 55-58 ℃, the soaking is fully carried out for 20-30min, then the metal cavity is taken out, degreasing treatment is carried out by degreasing agent, and finally the metal cavity is cleaned by clear water and then is cooled and air-dried; and then welding operation is carried out in an inert gas environment.
The pickling solution is prepared by mixing sodium tripolyphosphate, formic acid and a surfactant according to the mass percentage ratio of 15:13:4:1, the pH value of the mixed solution is regulated to be lower than 2.5, the pickling and degreasing treatment are repeatedly carried out for a plurality of times, and the pickling and degreasing treatment is repeatedly carried out in a vibration mode during the soaking.
The first metal cavity 1 and the second metal cavity 2 form a complete accommodating cavity structure.
The soaking time of the acid washing and degreasing treatment is 20-30min, and the degreasing treatment temperature is controlled below 25 ℃. The pickling degreasing process can effectively remove rust and other oxide layers on the surface of the metal plate, and phosphating components in pickling solution can effectively improve the corrosion resistance of metal, and provide effective adhesive force for the next film coating operation, so that the metal plate is more firmly attached and is not easy to fall off. The second metal cavity is formed in one step, but may be subjected to acid washing and degreasing, and then subjected to a film coating operation.
S5, a plurality of groups of reinforcing rib pieces 3 are welded at the bottom of the first metal cavity 1 along the two directions of the transverse axis and the longitudinal axis respectively (the two ends of the reinforcing rib piece 3 are not more than the two ends of the first metal cavity 1), and the reinforcing rib structure can strengthen structural members at the edges of the first metal cavity 1 and the bottom. After the welding is finished, the welding part is polished and shaped, and the inner surface and the outer surface of the welding part are adhered with film layers, so that the film layers wrap the first metal cavity 1 and the reinforced piece 3, and the waterproof effect can be effectively realized while the heat dissipation is not influenced.
Before the first metal cavity 1, the second metal cavity 2 and the reinforcing rib 3 are punched, the first metal cavity is heated to 330-350 ℃, then the bending part is coated with lubricating liquid, and finally the first metal cavity is punched in a punching mode, so that stress is prevented from being changed when the bending part is punched.
The comparative example is formed by directly welding a plurality of sections of reinforcing plates at present.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (10)
1. The stamping forming method of the metal cavity structure is characterized by comprising the following steps of:
s1, firstly, cutting a plate according to a preset drawing, and obtaining a blank after cutting; wherein the blank is a metal piece;
s2, heating the cut metal part blank to 150-1200 ℃, placing the metal part blank in a die casting machine for stamping operation, and stamping to enable the metal part to integrally form a cavity structure with a concave middle part to form a first metal cavity;
s3, taking another group of metal parts, heating the cut and formed metal part blank to 150-1200 ℃, placing the metal part blank in a die casting machine for stamping operation, hot stamping to obtain a cavity structure with a concave middle part, forming raised edges on the periphery, and then secondarily stamping the top panel of the metal part to enable the top panel of the metal part to continuously rise upwards for the second time and form raised bulges to form a second metal cavity;
s4, heating the cut and formed metal piece to 150-1200 ℃ and performing stamping forming to form a reinforcing rib piece, and enabling the formed metal piece and the bottom of the first metal cavity to be mutually attached;
the first metal cavity and the second metal cavity form a complete accommodating cavity structure.
2. The method for press forming of a metal cavity structure according to claim 6, wherein before the first metal cavity, the second metal cavity and the reinforcing rib member are pressed, the metal cavity structure is heated to 130-250 ℃, then the lubricating liquid is coated at the bending position, and finally the press forming is performed by adopting a press forming mode.
3. The method for stamping and forming a metal cavity structure according to claim 1, wherein before the first metal cavity and the reinforcing rib member in the step S4 are welded, pickling solution is adopted for soaking, the soaking temperature is controlled to be 55-58 ℃, the metal cavity structure is fully soaked for 20-30min, then the metal cavity structure is taken out, degreasing treatment is carried out by adopting degreasing agent, and finally the metal cavity structure is cleaned by adopting clear water and then is cooled and air-dried;
the welding operation is carried out in an inert gas environment.
4. The method for stamping and forming a metal cavity structure according to claim 3, wherein the pickling solution is prepared by mixing sodium tripolyphosphate, formic acid and a surfactant according to a mass ratio of 15:13:4:1, and the pH value of the mixed solution is adjusted to be lower than 2.5.
5. A press forming method of a metal cavity structure according to claim 3, wherein the pickling and degreasing treatment infiltration time is 20-30min, and the degreasing treatment temperature is controlled below 25 ℃.
6. The stamping forming method of the metal cavity structure according to claim 1, wherein the first metal cavity (1) is of a frame structure as a whole, the first metal cavity (1) comprises a top corner (11) at four corners and a middle panel (12), an annular edge (102) turned outwards is arranged at the peripheral position of the middle panel (12), and the annular edge (102) wraps the periphery of the panel (12) and forms an inwards concave cavity structure;
the reinforcing rib piece (3) is positioned at the lower part and the side edge of the first metal cavity (1) and fixed, and a layer of film coating layer (4) is respectively adhered to the inner side and the outer side of the formed first metal cavity (1), so that the film coating layer (4) wraps the inner layer and the outer layer of the formed first metal cavity (1);
the second metal cavity (2) is located at the upper position of the first metal cavity (1), and the second metal cavity (2) and the first metal cavity (1) are hinged to each other to form a cavity structure with a hollowed-out middle.
7. The stamping forming method of the metal cavity structure according to claim 6, wherein the width of the two ends of the reinforcement member (3) is smaller than the width of the two ends of the first metal cavity (1).
8. The stamping forming method of the metal cavity structure according to claim 6, wherein the inner wall of the first metal cavity (1) is provided with a plurality of groups of through holes (101), and the upper surface and the lower surface of the through holes (101) are wrapped by the film coating layer (4).
9. The press forming method of a metal cavity structure according to claim 6, wherein the reinforcing rib members (3) are provided in plural groups and are arranged along the width direction in which the first metal cavity (1) is located.
10. The stamping forming method of the metal cavity structure according to claim 6, wherein the outer edges (103) at the edge positions of the first metal cavity (1) and the second metal cavity (2) extend outwards, and connecting holes (104) are formed in the outer edges (103), so that when the first metal cavity (1) and the second metal cavity (2) are covered with each other, the connecting holes (104) at the upper and lower positions are mutually matched and are fixed after being penetrated by bolt pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310443548.2A CN116441938A (en) | 2023-04-23 | 2023-04-23 | Stamping forming method of metal cavity structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310443548.2A CN116441938A (en) | 2023-04-23 | 2023-04-23 | Stamping forming method of metal cavity structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116441938A true CN116441938A (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310443548.2A Pending CN116441938A (en) | 2023-04-23 | 2023-04-23 | Stamping forming method of metal cavity structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116441938A (en) |
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- 2023-04-23 CN CN202310443548.2A patent/CN116441938A/en active Pending
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