One-die multi-cavity forging automatic production process for thin plate special-shaped products

Abstract

The invention relates to a one-die multi-cavity forging automatic production process for sheet special-shaped products, which comprises the steps of blanking, heating, blank making, pre-forging, finish forging, trimming and punching, waste heat quenching, tempering, flaw detection, shot blasting, rust prevention and packaging, the problems that one-die single-cavity automatic forging and one-die multi-cavity manual forging are poor in product consistency, the die structure is complex, defects are prone to being generated, and the production cost is too high are solved. According to the process, automatic forging production is adopted, a special clamping jaw punching structure is adopted, the clamping jaws can clamp a plurality of products and material edges at the same time, and the process has the advantages of being low in die cost, high in production efficiency and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of automated forging, and specifically relates to an automated production process for forging thin plate special-shaped products with multiple cavities in one die. Background Art

[0002] Some existing thin plate special-shaped forgings usually adopt an automated forging production process with a single cavity in one die or a manual forging production process with multiple cavities in one die. On the one hand, for the automated forging production process with a single cavity in one die, the mold cost is relatively high and the production efficiency is low. On the other hand, for the manual forging production process with multiple cavities in one die, there are problems such as unstable product quality and high labor costs. Summary of the Invention

[0003] The present invention proposes an automated production process for forging thin plate special-shaped products with multiple cavities in one die. By using the method of forging with multiple cavities in one die, it solves the problems of poor product consistency, complex mold structure, easy generation of defects, and high production costs in the two processes of automated forging with a single cavity in one die and manual forging with multiple cavities in one die. This process uses automated forging production, and the unique punching and clamping jaw structure enables the clamping jaws to simultaneously clamp multiple products and the material edges, with the advantages of low mold cost and high production efficiency.

[0004] To solve the above technical problems, the present invention provides the following technical solution: An automated production process for forging thin plate special-shaped products with multiple cavities in one die, including: S1. Blanking: Sawing a round bar into short blanks that meet the requirements;

[0005] S2. Heating: Heating the short blanks to 1100 - 1200 °C;

[0006] S3. Billet making: The robot puts the heated short blanks into the billet making die to obtain billet making parts;

[0007] S4. Pre-forging: The robot puts the billet making parts into the pre-forging die, and uses a pre-forging die with multiple cavities in one die to forge the basic shape of the thin plate special-shaped products to obtain pre-forged parts;

[0008] S5. Final forging: The robot puts the pre-forged parts into the final forging die, and performs re-forging through the final forging die with multiple cavities in one die to obtain final forging parts whose dimensions meet the requirements of the product drawings except for the contour dimensions of the parting surface;

[0009] S6. Trimming and punching: The robot puts the final forging parts into the trimming and punching die through the clamping jaw die, removes the excess material at the parting surface and the web of the final forging parts, and obtains multiple trimmed and punched thin plate special-shaped parts at one time;

[0010] S7. Post-heat quenching: The robot continuously places multiple thin plate shaped parts with trimmed edges and punched holes onto the conveyor belt for cooling. After the product cools down to a specific temperature, it is placed into a post-heat quenching water tank for quenching treatment to obtain quenched parts.

[0011] S8. Tempering: The robot places the quenched parts into a tempering furnace. After tempering, tempered parts are obtained.

[0012] S9. Flaw detection: The tempered parts are clamped by the robot to a specified position inside a flaw detector, magnetized automatically and sprayed with magnetic particle flaw detection liquid to check whether there are defects in the product, and flaw-detected parts are obtained.

[0013] S10. Shot peening: Shot peening is carried out on the flaw-detected parts to remove impurities on the surface of the product and improve the appearance quality of the product, and shot-peened parts are obtained.

[0014] S11. Rust prevention: The robot places the shot-peened products at specified positions on the rust prevention line for rust prevention, so that the surface of the product is evenly covered with rust prevention liquid to prevent the product from rusting, and the final finished products are obtained.

[0015] S12. Packaging: The robot automatically places a specified number of finished products into a packaging frame as required and waits for shipment.

[0016] As an optimized technical solution of an automated production process for forging thin plate shaped products with multiple cavities in one mold, the oxide skin formed on the surface after heating of the short billet is removed, and the bar stock is preformed first, and its shape is close to the outer shape of the pre-forging cavity, realizing pre-distribution of the short billet.

[0017] As an optimized technical solution of an automated production process for forging thin plate shaped products with multiple cavities in one mold, blanking, pre-forging, and final forging are completed on the same forging press. The designed blanking, pre-forging, and final forging impact forces are such that the sum of the blanking and final forging impact forces is equal to the pre-forging impact force.

[0018] As an optimized technical solution of an automated production process for forging thin plate shaped products with multiple cavities in one mold, in step S6, the jaw die includes jaws and a cylinder; the jaws are driven by the cylinder, and the jaw die is adapted to simultaneously grasp multiple products and the trimmed edges after punching in automated production, and the jaws are fixedly installed on the robot manipulator.

[0019] As an optimized technical solution of an automated production process for forging thin plate shaped products with multiple cavities in one mold, taking forging with two cavities in one mold as an example, the trimming and punching die is a two-cavity mold in one mold, the jaw die has two sets of product jaws and one trimmed edge jaw, each set of product jaws and trimmed edge jaws are respectively provided with corresponding cylinders, and the cylinders are provided with corresponding cylinder fixing plates.

[0020] As an optimal technical solution for the automatic production process of forging a thin - plate special - shaped product with multiple cavities in one die, taking the forging of two cavities in one die as an example, each of the two sets of product grippers grabs one product respectively. Each set of product grippers is divided into two parts: the first product gripper 7 and the second product gripper 9. The first product gripper 7 is connected to point A in the product cylinder, and the second product gripper 9 is connected to point B in the product cylinder. The two sets of product grippers are respectively fixedly installed on two product cylinders, and the product cylinders are fixedly installed on the product cylinder fixing plate. The product cylinder fixing plate is fixedly combined with the edge - material cylinder fixing plate. The product grippers can simultaneously grab products of different specifications and sizes through the action of the product cylinders without interfering with each other.

[0021] As an optimal technical solution for the automatic production process of forging a thin - plate special - shaped product with multiple cavities in one die, the jaw die is fixedly installed on the robot manipulator through the edge - material cylinder fixing plate. On the other side of the edge - material cylinder fixing plate, an edge - material cylinder is fixedly installed. On both sides of the edge - material cylinder, edge - material jaws are respectively fixedly installed. The two edge - material jaws can adapt to the size of the edge - material to correctly grab through the action of the edge - material cylinder.

[0022] As an optimal technical solution for the automatic production process of forging a thin - plate special - shaped product with multiple cavities in one die, in step S7, the starting quenching temperature for residual heat quenching is 820 - 950 °C; the quenching time is about 60 - 180 s, and the quenching medium is PAG quenching liquid with a concentration of 5 - 12%.

[0023] As an optimal technical solution for the automatic production process of forging a thin - plate special - shaped product with multiple cavities in one die, in step S8, the tempering temperature is 440 - 470 °C, the time is 120 - 180 min, and the cooling medium is clear water.

[0024] As an optimal technical solution for the automatic production process of forging a thin - plate special - shaped product with multiple cavities in one die, in step S9, after the flaw detection is completed, the flaw - detected parts are put into the demagnetizing conveyor belt to remove the residual magnetism of the flaw - detected parts.

[0025] The beneficial effects of the present invention:

[0026] Under the same production requirements, using the forging method of multiple cavities in one die can reduce the forging batches of products. For the products forged in the same batch, their consistency is better;

[0027] Using the forging method of multiple cavities in one die can reduce the consumption of molds, save the mold processing time and mold procurement costs, and achieve a decrease in mold costs;

[0028] By separately designing the local shape in the cavity of the pre - forging die, the problem of folding defects generated during the forging of thin - plate special - shaped products with multiple cavities is solved, and the product rejection rate is reduced;

[0029] By designing a new type of jaw, it can adapt to automated production while meeting the requirements of grasping multiple products and material edges simultaneously, and meet the production beat requirements, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0031] Figure 1 is a flowchart of the production process of thin plate products related to the present invention;

[0032] Figure 2 is a schematic structural diagram of a thin plate multi-cavity forging product illustrated by the present invention;

[0033] Figure 3 is a top view of a forging trimming and punching jaw die with a double-cavity for one mold illustrated by the present invention;

[0034] Figure 4 is a front view of a forging trimming and punching jaw die with a double-cavity for one mold illustrated by the present invention;

[0035] Figure 5 is a schematic diagram of the material edge grasping of a forging trimming and punching jaw die with a double-cavity for one mold illustrated by the present invention.

[0036] Reference numerals: 1, product; 2, material edge jaw; 3, product cylinder; 4, product cylinder fixing plate; 5, material edge cylinder; 6, material edge cylinder fixing plate; 7, first product jaw; 8, material edge; 9, second product jaw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific embodiments of the present invention in conjunction with the drawings in the specification.

[0038] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0039] Second, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures or characteristics that may be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive with other embodiments.

[0040] Thirdly, the present invention is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present invention, for the convenience of explanation, the cross-sectional views showing the device structure will be locally enlarged out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0041] Embodiment 1

[0042] Referring to Figures 1 to 5 , this embodiment provides an automated production process for forging a thin plate special-shaped product with multiple cavities in one die. By using the method of forging with multiple cavities in one die, it solves the problems of poor product consistency, complex die structure, easy generation of defects, and high production cost in the two processes of automated forging with a single cavity in one die and manual forging with multiple cavities in one die. This process uses automated forging production, and the unique punching claw structure enables the claws to simultaneously clamp multiple products and the material edges, having the advantages of low die cost and high production efficiency.

[0043] To solve the above technical problems, the present invention is realized through the following technical solutions: An automated production process for forging a thin plate special-shaped product with multiple cavities in one die, including the following steps:

[0044] S1. Blanking: Saw the round bar stock into short blank materials that meet the requirements;

[0045] S2. Heating: Heat the short blank materials to 1100 - 1200 °C;

[0046] S3. Billet making: The robot puts the heated short blank materials into the billet-making die to obtain billet-making parts;

[0047] S4. Pre-forging: The robot puts the billet-making parts into the pre-forging die, and uses a pre-forging die with multiple cavities in one die to forge the basic shape of the thin plate special-shaped product to obtain pre-forged parts;

[0048] S5. Final forging: The robot puts the pre-forged parts into the final-forging die, and performs re-forging through the final-forging die with multiple cavities in one die to obtain final-forged parts whose dimensions except for the outline dimensions of the parting surface meet the requirements of the product drawings;

[0049] S6. Trimming and punching: The robot puts the final-forged parts into the trimming and punching die through the claw die, removes the redundant materials at the parting surface and the web of the final-forged parts, and obtains multiple trimmed and punched thin plate special-shaped parts at one time;

[0050] S7. Post - heat quenching: The robot continuously places multiple trimmed, punched, and profiled thin - sheet parts on the conveyor belt for cooling. After the products reach a specific temperature, they are placed in a post - heat quenching water tank for quenching treatment to obtain quenched parts.

[0051] S8. Tempering: The robot places the quenched products into a tempering furnace. After tempering, tempered parts are obtained.

[0052] S9. Flaw detection: The tempered parts are clamped by the robot and placed at a specified position in a flaw detector. They are automatically magnetized and sprayed with magnetic particle flaw detection liquid to check whether there are defects in the products, and flaw - detected parts are obtained.

[0053] S10. Shot peening: Shot peening is carried out on the flaw - detected parts to remove impurities on the product surface and improve the appearance quality of the products, and shot - peened parts are obtained.

[0054] S11. Rust prevention: The robot places the shot - peened products at specified positions on the rust - prevention line for rust prevention, so that the product surface is evenly covered with rust - prevention liquid to prevent the products from rusting, and the final finished products are obtained.

[0055] S12. Packaging: The robot automatically places a specified number of finished products into the packaging frame as required and waits for shipment.

[0056] As an optimized solution, in step S3, the oxide scale formed on the surface of the short billet after heating can be removed. At the same time, the bar stock can be pre - formed first, and its shape is close to the outer shape of the pre - forging cavity, realizing pre - sorting of the short billet and controlling the metal flow in the length direction of the material.

[0057] As an optimized solution, in step S4, the pre - forging die used is a multi - cavity die. On the one hand, through simulation analysis and comprehensive consideration of the actual use situation, and combined with the shape of the existing robot gripper, the appropriate distance between the cavities is designed. On the other hand, in order to prevent folding during the material diversion process, the local shape in the die cavity is specially designed. After the pre - forging process, the material completely fills the pre - forging die cavity, and there is excess material at the parting surface and the web.

[0058] As an optimized solution, in step S5, the final - forging die used is a multi - cavity die. Through simulation analysis and comprehensive consideration of the actual use situation, and combined with the shape of the existing robot gripper, the appropriate distance between the cavities is designed. After the final - forging process, the material completely fills the final - forging die cavity, and there is excess material at the parting surface and the web.

[0059] As an optimized solution, steps S3 - S5 are completed on the same forging press. The designed blanking, pre - forging, and final - forging impact forces are such that the sum of the blanking and final - forging impact forces is approximately equal to the pre - forging impact force, so as to solve problems such as low die life and incomplete product filling caused by the forging force distribution problem.

[0060] As a preferred solution, the number of ejector rods in steps S4 - S5 is reduced. While meeting the ejection requirements, it can reduce costs and the downtime caused by the deformation of the ejector rods during forging.

[0061] As a preferred solution, steps S4 - S5 are forging with multiple cavities in one mold. A choke groove is added at the mold bridge part in the product length direction to reasonably distribute the material and make the product easy to fill.

[0062] As a preferred solution, in step S6, due to the thinness of the web in forging with multiple cavities in one mold, it will cool first. The shrinkage rate here is inconsistent with that of the product, and the product is a thin - plate type, which is prone to deformation during both cooling and punching. Therefore, a complex trimming and punching compound die structure is adopted to adapt to the shrinkage of multi - cavity forging, ensure the punching quality and control the deformation amount of the product.

[0063] As a preferred solution, in step S6, the chuck die used includes a jaw and a cylinder; the jaw is driven by the cylinder, and the chuck die is adapted to simultaneously grab multiple products and the trimmed material edges in automated production, and the chuck is fixedly installed on the robot manipulator.

[0064] As a preferred solution, taking forging with two cavities in one mold as an example, the chuck die has two sets of product jaws and one material - edge jaw, and each set of product jaws and the material - edge jaw are respectively provided with corresponding cylinders, and the cylinders are provided with corresponding cylinder fixing plates.

[0065] As a preferred solution, taking forging with two cavities in one mold as an example, each set of the two sets of product jaws grabs one product. Each set of product jaws is divided into two parts: the first product jaw 7 and the second product jaw 9. The first product jaw 7 is connected to point A in the product cylinder 3, and the second product jaw 9 is connected to point B in the product cylinder 3. The two sets of product jaws are correspondingly fixedly installed on the product cylinder 3, and the product cylinder 3 is fixedly installed on the product cylinder fixing plate 4. Therefore, the numbers of the product cylinder 3 and the product cylinder fixing plate 4 are both the same as the number of product cavities in forging with multiple cavities in one mold.

[0066] The product cylinder fixing plate 4 and the material - edge cylinder fixing plate 6 are fixedly combined. The product jaws can grab products of different specifications and sizes simultaneously through the action of the product cylinder 3, and the two sets of product jaws grab products independently without interfering with each other.

[0067] As a preferred solution, the chuck die is fixedly installed on the robot manipulator through the material - edge cylinder fixing plate 6. On the other side of the material - edge cylinder fixing plate 6, a material - edge cylinder 5 is fixedly installed. On both sides of the material - edge cylinder 5, material - edge chucks 2 are respectively fixedly installed. The two material - edge chucks 2 can adapt to the size of the material edge 8 to correctly grab through the action of the material - edge cylinder 5.

[0068] As a preferred solution, in step S7, the starting quenching temperature for the waste heat quenching is 820 - 950 °C; the quenching time is about 60 - 180 s, and the quenching medium is PAG quenching liquid with a concentration of 5 - 12%.

[0069] As a preferred solution, in step S8, the tempering temperature is 440 - 470 °C, the time is 120 - 180 min, and the cooling medium is clear water.

[0070] As a preferred solution, in step S9, after the flaw detection is completed, the flaw detection part is placed on the demagnetization conveyor belt to remove the residual magnetism of the flaw detection part.

[0071] The working principle of the chuck die used in the trimming and punching process provided in this embodiment is as follows:

[0072] As Figures 3 - 5 shown, taking the forging of one die with two cavities as an example, when the product completes the S6 trimming and punching process in the trimming and punching compound die, the two products forged from one die with two cavities are cut into two independent products, and there is a remaining flash at the parting surface of the forging of one die with two cavities. The two sets of product chucks in the chuck die respectively grab one product in the product length direction. The first product chuck 7 and the second product chuck 9 can adapt to the product length through the action of the product cylinder 3 to achieve accurate and stable grasping of the product; the edge chuck 2 grabs the edge 8 in the width direction. The edge chuck 2 can adapt to the edge width through the action of the edge cylinder 5 to achieve accurate and stable grasping of the edge; the chuck die simultaneously completes the grasping of two products and one edge, and sends the products to the waste heat quenching workbench and the edge to the waste bin to complete the grasping action, and then repeats the above actions until the production stops.

[0073] Compared with the prior art, the beneficial effects of the present invention are:

[0074] Under the condition of the same production requirements, using the forging method of one die with multiple cavities can reduce the forging batches of products. For the products forged in the same batch, their consistency is better;

[0075] Using the forging method of one die with multiple cavities can reduce the consumption of dies, save the die processing time and die procurement cost, and achieve a reduction in die costs;

[0076] By separately designing the local shape in the cavity of the pre-forging die, the problem of folding defects generated during the forging of thin plate special-shaped products in multiple cavities is solved, and the product rejection rate is reduced;

[0077] By designing a new type of chuck, while meeting the requirement of simultaneously grasping multiple products and the edge, it adapts to automated production and meets the production beat requirements, thus improving production efficiency.

[0078] It should be understood that, during the development of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be routine work in design, manufacturing, and production.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An automated production process for forging thin plate special-shaped products with one die and multiple cavities, characterized by: include, S1. Cutting: Cut the round bar into short blanks that meet the requirements; S2. Heating: heating the short billet to 1100-1200°C; S3. Blank making: The robot puts the heated short blank into the blank making mold to obtain a blank; S4. Pre-forging: The robot places the blank into the pre-forging die, and uses a pre-forging die with multiple cavities to forge the basic shape of thin-plate special-shaped products to obtain a pre-forged part; S5. Final forging: The robot puts the pre-forged part into the final forging die and forges it again through the one-die multi-cavity final forging die to obtain a final forging part whose dimensions meet the requirements of the product drawing except for the outer contour dimensions of the parting surface; S6. Trimming and punching: The robot puts the final forging into the trimming and punching die through the claw die, removes the excess material on the parting surface and the skin of the final forging, and obtains multiple trimming and punching thin plate special-shaped parts at one time; S7. Residual heat quenching: The robot places a plurality of trimmed and punched thin plate shaped parts on a conveyor belt for cooling. After the products are cooled to a certain temperature, they are placed in a residual heat quenching water tank for quenching to obtain quenched parts. S8. Tempering: The robot puts the quenched product into the tempering furnace and obtains the tempered product after tempering; S9. Flaw detection: The tempered parts are clamped by robots to the designated position in the flaw detector, automatically magnetized and sprayed with magnetic particle flaw detection fluid to check whether the product has defects and obtain the flaw detection parts; S10. Shot blasting: Shot blast the flaw detection parts to remove impurities on the surface of the products, improve the appearance quality of the products, and obtain shot blasted parts; S11. Rust prevention: The robot places the shot-blasted products on the designated position of the rust prevention line for rust prevention, so that the surface of the products is evenly covered with anti-rust liquid to prevent the products from rusting and obtain the final product; S12. Packaging: The robot automatically places the specified number of finished products into the packaging box as required, waiting for shipment.

2. The one-die multi-cavity forging automated production process for thin plate special-shaped products according to claim 1 is characterized by: The oxide scale formed on the surface of the short billet after heating is removed, and the bar is preformed in advance, and its shape is close to the shape of the pre-forging cavity, so as to realize the pre-dividing of the short billet.

3. The one-die multi-cavity forging automated production process for thin plate special-shaped products according to claim 2 is characterized by: Blank making, pre-forging and final forging are completed on the same forging press. The designed impact force of blank making, pre-forging and final forging is such that the impact force of blank making plus final forging is equal to the impact force of pre-forging.

4. The one-die multi-cavity forging automated production process for thin plate special-shaped products according to claim 3 is characterized by: In step S6, the clamping jaw mold includes a clamping jaw and a cylinder; the clamping jaw is driven by the cylinder, and the clamping jaw mold is adapted to simultaneously grasp multiple products and the edges of materials after punching in automated production, and the clamping jaw is fixedly mounted on a robot manipulator.

5. The one-die multi-cavity forging automated production process for thin plate special-shaped products according to claim 4 is characterized by: The trimming and punching die is a one-mold multi-cavity die, the clamping jaw die has multiple sets of product jaws and one material edge jaw, each set of product jaws and material edge jaws are respectively provided with corresponding cylinders, and the cylinders are provided with corresponding cylinder fixing plates.

6. The one-die multi-cavity forging automated production process for thin plate special-shaped products according to claim 5 is characterized by: The plurality of sets of product clamps each grasp one product. Each set of product clamps is divided into two parts, namely a first product clamp (7) and a second product clamp (9). The first product clamp (7) is connected to point A in the product cylinder (3), and the second product clamp (9) is connected to point B in the product cylinder (3). Each set of product clamps is fixedly mounted on the product cylinder (3). The product cylinder (3) is fixedly mounted on a product cylinder fixing plate (4). The product cylinder fixing plate (4) is fixedly assembled with the material edge cylinder fixing plate (6). The product clamps can grasp products of different specifications and sizes at the same time through the action of the product cylinder (3). The plurality of product clamps independently grasp products without interfering with each other.

7. The one-die multi-cavity forging automated production process for thin plate special-shaped products according to claim 6 is characterized by: The clamping claw mold is fixedly mounted on the robot manipulator via a material edge cylinder fixing plate (6); a material edge cylinder (5) is fixedly mounted on the other side of the material edge cylinder fixing plate (6); and material edge clamping claws (2) are respectively fixedly mounted on the two side surfaces of the material edge cylinder (5); the two material edge clamping claws (2) are adapted to the size of the material edge (8) through the action of the material edge cylinder (5) so as to grasp the material edge correctly.

8. The one-die multi-cavity forging automated production process for thin plate special-shaped products according to claim 7 is characterized by: In step S7, the starting quenching temperature of the residual heat quenching is 820-950°C; the quenching time is about 60-180s, and the quenching medium is PAG quenching liquid with a concentration of 5-12%.

9. The one-die multi-cavity forging automated production process for thin plate special-shaped products according to claim 8 is characterized by: In step S8, the tempering temperature is 440-470°C, the time is 120-180 min, and the cooling medium is clean water.

10. The one-die multi-cavity forging automated production process for thin plate special-shaped products according to claim 9, characterized in that: In step S9, after the flaw detection is completed, the flaw detection part is placed on a demagnetization conveyor belt to remove the residual magnetism of the flaw detection part.

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