A shaping process for a high-resilience article stamping die

Abstract

The application provides a high-resilience workpiece stamping die shaping sequential machining process, and belongs to the technical field of stamping die machining. The high-resilience workpiece stamping die shaping sequential machining process adopts the machining of a casting insert in the early stage, and changes the quenching mode from overall quenching to quenching only at the convex R corner part. Compared with overall quenching, the deformation amount is small, the profile can be machined once, and then quenching treatment is performed. Compared with the machining of two processes before and after forging of the insert, the machining time of the die in the early stage is effectively reduced, the machining efficiency is improved, and the machining cost is reduced. At the same time, when the casting insert is used for participation in the rectification, the surface of the casting insert can be welded, or the position of the insert can be adjusted by adding a gasket, which is more convenient for the development of the rectification scheme. In the rectification machining process, since the casting is quenched only at the convex R corner part, the hardness of the remaining part is low, which is more convenient for the machining of the numerical control machine tool, reduces the tool wear during machining, and saves the machining cost.

Description

Technical Field

[0001] This invention belongs to the field of stamping die processing technology, specifically relating to a forming process for stamping dies of high springback parts. Background Technology

[0002] Automotive sheet metal parts are typically formed using stamping dies, and most stamping dies usually include a first-stage drawing process, a second-stage trimming process, and a final-stage forming process. The forming process of sheet metal parts generally involves drawing, trimming, and forming sequentially. However, for some thicker sheet metal parts, due to the high springback rate and large errors in the initial springback analysis, a rectification plan needs to be developed based on the springback error of the sheet metal parts in later processing, requiring reprocessing of the forming surface, and this often involves multiple rectifications. Meanwhile, inserts in the forming process are usually made of forged high-performance die steel. The heat treatment process for these inserts typically involves integral quenching, which increases the overall hardness of the insert. Because welding the surface of high-performance die steel after quenching during the rectification process can easily cause the insert to crack and become unusable, increasing die processing costs, the common approach is to add a shim between the insert and the die base, allowing the insert to move upwards or inwards within the die. However, this method has several drawbacks. First, the insert is quenched as a single piece, and second, the large machining area increases subsequent processing costs. Furthermore, after multiple rounds of rework, the insert becomes thin, which can affect its normal use and lead to its scrapping. This necessitates the purchase of new forgings and re-machining of the insert, increasing mold manufacturing costs. Summary of the Invention

[0003] This invention provides a high-spring-resilience part stamping die forming process, which aims to solve the problem in the prior art that the high-spring-resilience part forming die is difficult to process during the rectification process and is prone to causing the scrap of inserts, resulting in increased processing costs.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a high-springback part stamping die forming process, including:

[0005] Step 1: Pre-fabricate the casting inserts and install them onto the mold base. Machin the mold surface according to the original data.

[0006] Step 2: Quench the convex R-corners on the machined surface. After quenching, polish the entire surface to achieve the final product state.

[0007] Step 3: The mold is used to shape and produce the part. The part is inspected, and the surface data of the shaping process is adjusted. The insert is reprocessed according to the new data and polished to achieve the output state.

[0008] Step 4: Repeat step 3 until the part is qualified. Scan the surface data of the forming mold to form the final data, replace the casting insert with the forging insert, and process the forming mold into place according to the final data.

[0009] In one possible implementation, in step 4, the forging is pre-fired and the profile is left with the amount of material to be processed after the fire. After the insert is quenched, it is then finished after the fire.

[0010] In one possible implementation, in step 1, when installing the casting insert onto the mold base, a process pin is used to position the casting insert on the mold base, and the outer diameter of the process pin is smaller than the pin size on the forging insert.

[0011] In one possible implementation, in step 4, when scanning the surface data of the forming mold, the upper mold base and the lower mold base are adjusted to the forming state, and the overall surface is scanned. When the forging insert is post-fired, the post-fired processing of the forging insert is performed with the unreplaced surface on the mold base as the reference.

[0012] In one possible implementation, the casting insert is scanned separately, and the forging insert is processed separately before the fire is started. The seam is left for post-fire grinding. After the forging insert is quenched, the seam is ground and the fire-fed forging insert is assembled onto the mold base for post-fire processing.

[0013] In one possible implementation, during the machining of the forging insert, the reference coordinate is raised for pre-fire machining, and during post-fire machining, the forging insert is installed on the die base using the normal reference for post-fire machining.

[0014] In one possible implementation, the forged inserts require extensive machining of a large portion before being transferred to a CNC machine tool for surface machining.

[0015] In one possible implementation, a drawing with de-masking lines is designed and printed at a 1:1 scale. During the de-masking process, the drawing is overlaid on the forging blank, and the de-masking operation of the forging insert is completed according to the de-masking lines.

[0016] In one possible implementation, after the heat-treated insert is installed on the mold base, the insert surface before processing is scanned and compared with the final data. If the machining allowance in the height direction of the insert is too large, the insert is removed and the mounting surface of the insert is lowered for processing. If the machining allowance in the height direction of the insert meets the normal machining allowance, the heat-treated processing is performed normally.

[0017] In one possible implementation, during the post-fired machining of the forging inserts, the casting inserts at both ends of the same row are first installed onto the mold base. The forging inserts in the same row are machined using the surface of the casting inserts as the machining reference. After machining, the casting inserts at both ends are removed and replaced with forging inserts. Then, the newly installed forging inserts at both ends are machined using the surface of the machined forging inserts as the reference.

[0018] The solution described in this application, compared with the prior art, uses cast inserts instead of forged inserts for initial machining and debugging of the forming mold. After multiple rounds of rectification and qualified parts, the mold surface is scanned to obtain the final data for surface machining. Simultaneously, the cast inserts are replaced with forged inserts, and the forged inserts are machined using the final data. In this application, the initial machining of cast inserts involves changing the quenching method from overall quenching to quenching only the convex R-corners. This quenching method results in less deformation compared to overall quenching, allowing for single-step surface machining followed by quenching. Compared to the two-step pre- and post-quenching process of forged inserts, this effectively reduces the initial machining time of the mold, improves machining efficiency, and reduces machining costs. Furthermore, when using cast inserts for rectification, the surface of the cast inserts can be welded, and the position of the inserts can be adjusted by adding shims, making it easier to formulate rectification plans. During the rectification and processing, since the casting only uses the convex R-corner part for quenching, the remaining parts have lower hardness, which makes it easier for CNC machine tools to process, reduces tool wear during processing, and saves processing costs. Attached Figure Description

[0019] Figure 1 A flowchart of the high springback part stamping die forming process provided in the embodiments of the present invention;

[0020] Figure 2 This is a schematic diagram of the upper mold base provided in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the lower mold base provided in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the forging insert provided in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of a forging insert provided in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Upper mold base; 2. Forging insert; 21. Joint; 22. Retaining wall; 23. Bottom surface; 3. Pressing core; 4. Lower mold base; 5. Supporting core. Detailed Implementation

[0026] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0027] Please refer to the following: Figures 1 to 4 The forming process of the high springback part stamping die provided by the present invention will now be described. The forming process of the high springback part stamping die includes the following steps:

[0028] Step 1: Pre-fabricate the casting inserts and install them onto the mold base. Machin the mold surface according to the original data.

[0029] Step 2: Quench the convex R-corners on the machined surface. After quenching, polish the entire surface to achieve the final product state.

[0030] Step 3: The mold is used to shape and produce the part. The part is inspected, and the surface data of the shaping process is adjusted. The insert is reprocessed according to the new data and polished to achieve the output state.

[0031] Step 4: Repeat step 3 until the part is qualified. Scan the surface data of the forming mold to form the final data, and replace the casting insert with the forging insert 2. Then process the forming mold into place according to the final data.

[0032] The high-resilience stamping die forming process provided in this embodiment, compared with the prior art, uses a cast insert instead of a forged insert 2 for initial part processing and debugging during the early processing of the forming die. After multiple rounds of rectification and qualified part production, the die surface is scanned to obtain the final surface processing data. At the same time, the cast insert is replaced with the forged insert 2, and the forged insert 2 is processed using the final data. In the early processing of the cast insert in this application, the quenching method is changed from overall quenching to quenching only the convex R-corner. The quenching method has a smaller deformation than overall quenching, and the surface can be formed in one pass before quenching. Compared with the two-step processing of the forged insert 2 before and after quenching, it effectively shortens the early processing time of the die, improves processing efficiency, and reduces processing costs. At the same time, when using the cast insert for rectification, the surface of the cast insert can be welded, and the position of the insert can be adjusted by adding shims, which makes it easier to formulate rectification plans. During the rectification and processing, since the casting only uses the convex R-corner part for quenching, the remaining parts have lower hardness, which makes it easier for CNC machine tools to process, reduces tool wear during processing, and saves processing costs.

[0033] Specifically, in this embodiment, the casting insert can be made from a material with low casting cost. The hardness of the convex R-corner portion of the material only needs to meet the requirements after quenching, thus reducing the cost of casting procurement. Furthermore, during subsequent rework, after machining the convex R-corner portion, the hardness of the convex R-corner needs to be retested to determine whether requenching is necessary, ensuring the stability of the finished product quality. Also, in step three, when reworking the casting insert, the machining area at the convex R-corner is programmed separately, as are other areas without hardness. The unquenched area has a large machining area. The unquenched area allows for increased milling speed and eliminates the need for expensive carbide tools. This improves machining efficiency in the unquenched area while reducing the use and wear of carbide tools, effectively lowering machining costs.

[0034] Specifically, in this embodiment, in step 3, after the part is processed by drawing, punching and shaping with a complete set of stamping dies, the part is inspected by a gauge, and a rectification plan is formulated based on the inspection error. The digital model of the shaping sequence die is changed again, and the casting inserts on the die are welded or the position is adjusted according to the new digital model before a new round of processing is carried out.

[0035] Preferably, in this embodiment, when quenching the casting insert protrusion R, the casting insert needs to be removed from the mold base before quenching. After the insert cools, it is then installed back onto the mold base. This avoids the gap 21 between two adjacent inserts from increasing due to thermal expansion and contraction.

[0036] Specifically, in this embodiment, in step 1, a pre-cast insert is prefabricated based on the shape of the initial digital model, leaving room for machining. This reduces the machining amount of the cast insert compared to a cast square block.

[0037] It should be noted that in step 4 above, the forging is pre-fired and the profile is left with machining allowance after fire. After the insert is quenched, it is then finished with post-fire finishing. After the part is qualified, the profile data is scanned to form the final digital model. At the same time, after replacing the casting insert with the forged insert 2, the final digital model is used for machining. To ensure the machining accuracy of the insert profile, a machining allowance of 0.2-0.5mm is left in the pre-fired machining profile when machining the forged insert 2. After the forged insert 2 is quenched as a whole, the profile and bottom surface 23 will deform, requiring the operator to re-lap the joint 21 and the bottom surface 23. If the machining is directly used, the profile will have errors after re-lapping and reassembly. Therefore, in this embodiment, the forged insert 2 is pre-fired with machining allowance to reduce the amount of machining after fire. Finally, the final data is used to machine the forged insert 2 into place during post-fire finishing. On the one hand, it can reduce processing costs, and on the other hand, it can ensure the accuracy of the shaping surface after processing.

[0038] In some embodiments, during step 1, when installing the casting insert onto the mold base, process pins are used to position the casting insert on the mold base. The outer diameter of the process pins is smaller than the pin size on the forged insert 2. After the insert is installed on the mold base, the position of the insert is positioned using pins. Simultaneously, pin holes need to be machined on both the insert and the mold base. However, after the casting insert is replaced with the forged insert 2, the positions of the pin holes on the casting insert and the forged insert 2 are prone to deviation, causing the pin holes on the forged insert 2 to not coincide with the pin holes on the mold base. Conventionally, the pin holes on the mold base need to be plugged and then the pin holes on the mold base re-machined using the pin holes on the forged insert 2 as a reference. In this application, process pin holes are machined on both the casting and the mold assembly, and the inner diameter of the process pin holes is smaller than the inner diameter of the pin holes in the design drawings. For example, if the design drawings specify a pin hole with a diameter of 16, the process pin hole can be made into a 12-diameter pin hole. After the mold is debugged and the finished product is qualified, the pin holes on the forged insert are used as a reference guide to machine the pin holes on the mold base. This allows for the positioning of the casting insert and the mold base in the early stage, and avoids the later operation of blocking the mold base holes. This reduces processing costs and improves production efficiency.

[0039] Preferably, in this embodiment, by setting the process pins, if the gap between the upper and lower mold inserts is greater than the theoretical value during the mold debugging process, the process pins can be removed and the position of the inserts adjusted; and during the rectification process, after the position of the inserts is adjusted, when finally installing the pins, it is not necessary to plug the pin holes on the mold base, thus reducing the amount of subsequent processing.

[0040] In some embodiments, see Figure 2 , Figure 3 The upper die base 1 of the forming die typically consists of the surface on the pressure core 3 and the surface on the insert; the lower die base 4 typically consists of the surface on the support core 5 or punch and the surface on the insert. The pressure core 3 and the support core 5 or punch are usually cast. Therefore, in step 4, when scanning the forming die surface data, the upper die base 1 and lower die base 4 are adjusted to the forming state, and the pressure core 3 or support core 5 is adjusted to the state where the die is fully closed when the part is ejected. The overall surface is scanned, and during the post-fired machining of the forging insert 2, the unreplaced surface on the die base is used as a reference for the post-fired machining of the forging insert 2. By scanning the overall surface data, the surface on the support core 5, punch, or pressure core 3 can be used as a reference for later machining, thereby improving the accuracy of the surface transition between the processed insert surface and the corresponding pressure core 3, support core 5, or punch. It should be noted that during the upper mold processing, the position of the pressure core 3 needs to be adjusted to the mold-closed state. During the lower mold processing, if it is a support core 5 structure, the position of the support core 5 needs to be adjusted to the mold-closed state.

[0041] Conventionally, during mold processing, the reference hole on the mold is usually used as the machining reference to process the mold surface. However, during the assembly of inserts or pressure core 3, assembly errors may occur. Therefore, even after the insert is replaced, the reference hole on the mold base is still used as the reference for processing. Assembly errors can easily cause errors in the relative position between the surface of the insert processed later and the surface of the corresponding pressure core 3, support core 5, or punch, thus affecting the final mold closing accuracy.

[0042] Specifically, in this embodiment, when machining the forging insert 2 after heat treatment, the programmer needs to simultaneously provide the machining program for the corresponding pressure core 3, support core 5, or punch. When machining the forging insert 2, the operator first customizes the coordinate system using the reference hole on the die base, then retrieves the machining program for the pressure core 3, support core 5, or punch, and corrects the coordinate system based on the actual position of the pressure core 3, support core 5, or punch surface to reduce the error in the relative position between the pressure core 3, support core 5, or punch and the forging insert 2 surface.

[0043] In some embodiments, see Figure 4 During pre-heat processing, the forged insert 2 is processed individually. Specifically, the casting insert is scanned separately, and the forged insert 2 is processed separately during pre-heat processing, leaving a post-heat grinding allowance at the joint 21. After quenching, the joint 21 is ground, and the forged insert 2 is assembled onto the mold base for post-heat processing. During pre-heat processing, the retaining wall 22 and joint 21 surfaces of the forged insert 2 are machined using a grinding machine, with a 0.05mm post-heat grinding allowance left on the joint 21 surface. After quenching, to avoid cumulative errors in the insert profile due to grinding at the joint 21, the forged insert 2 is processed individually before heat treatment. When scanning the casting insert, both the retaining wall 22 and the joint 21 surfaces of the casting insert need to be scanned to obtain data for individual insert machining. When machining the forged insert 2, the keyway surface and the center of the two joints 21 are used as machining references. After the forged insert 2 is quenched, the joint 21 surfaces are ground to ensure that the insert still has sufficient machining allowance.

[0044] Conventionally, to avoid cumulative errors caused by grinding the joint 21 after quenching of the forged insert 2, resulting in insufficient surface finish, it is necessary to increase the machining allowance before quenching. However, this conventional method results in a large amount of post-quench machining for the forged insert 2. In this embodiment, the forged insert 2 is machined separately before quenching, allowing for post-quench grinding allowance at the joint 21 in advance, reducing errors that may occur after post-quench grinding. Simultaneously, the pre-quench machining surface does not require a large machining allowance, reducing post-quench machining and thus lowering processing costs. Furthermore, by machining individual pieces before quenching, and then assembling the polished inserts onto the mold base after quenching, the overall surface machining accuracy can still be guaranteed even when multiple inserts are mounted on the mold base for machining.

[0045] In some embodiments, after quenching, the forging insert 2 will deform as a whole. In actual production, before re-grinding and repairing the joint 21 and the retaining wall 22, the bottom surface 23 of the insert also needs to be repaired. Therefore, in this embodiment, during the machining of the forging insert 2, the reference coordinate is raised for pre-fire machining, and during post-fire machining, the forging insert 2 is installed on the mold base using the normal reference for post-fire machining. Preferably, during pre-fire machining, the coordinate system of the machining reference is raised 0.1~0.2mm in the vertical direction. After quenching, the insert is transferred to a grinding machine to re-grind and level the bottom surface 23 of the forging insert 2. To avoid the phenomenon of insufficient material on the top surface during post-fire machining, the reference in the vertical direction of the machining coordinate system is adjusted during pre-fire machining to allow for the machining allowance of the bottom surface 23 in the later grinding process. This ensures that the surface has sufficient machining allowance after firing.

[0046] Conventionally, after quenching, the bottom surface 23 of the forged insert 2 is usually manually ground. However, this method is inefficient and prone to errors due to manual operation. Using a grinding machine, on the other hand, allows for rapid leveling of the bottom surface 23 of the insert, resulting in higher production efficiency. Furthermore, by raising the coordinate system during pre-heating processing, sufficient grinding allowance is provided for the grinding process, effectively improving the grinding efficiency of the forged insert 2 after quenching.

[0047] Specifically, in this embodiment, after the forging insert 2 has been quenched, when grinding the bottom surface 23, the bottom surface 23 of the forging insert 2 faces upwards. The height of the four corners of the insert is adjusted so that the height of two opposite corners is consistent. The grinding is performed downwards with the highest point of the bottom surface 23 of the forging insert 2 as the reference, with the same amount of machining as the coordinate system elevation during pre-heating processing. That is, when the coordinate system is raised by 0.2mm, the grinding is performed downwards with the highest point as the base by 0.2mm. This ensures that the maximum grinding amount of the bottom surface 23 of the forging insert 2 is 0.2mm, thereby avoiding the phenomenon of insufficient material on the front surface of the forging insert 2. At the same time, the diagonal leveling method can ensure the uniformity of grinding of the bottom surface 23 of the insert.

[0048] In some embodiments, see Figure 5The shaded areas represent the portions requiring significant removal. The forged insert 2, after being purchased and returned to the factory, has a rectangular hexahedral structure. The bottom surface 23, the retaining wall surface 22, and the joint surface 21 are ground using a grinding machine. Because some inserts have irregular shapes on their corresponding surfaces, the machining workload at the corners of some surfaces is relatively large. Conventional CNC machine tool processing typically employs a layer-by-layer cutting method, which is inefficient and consumes a lot of tools. In this embodiment, forging insert 2, which requires significant removal, is first processed by machining, and then transferred to a CNC machine tool for surface machining. A milling machine or sawing machine is used to prioritize the removal of the large portions. The forging insert 2 is machined separately, and its placement can be freely adjusted for easy milling. This reduces the workload of subsequent programmers and CNC machine tools, thereby improving the efficiency of pre-fired machining.

[0049] Preferably, in this embodiment, during the process of removing a large quantity of inserts, a saw can be used for cutting, so that the removed material can be used for processing other parts.

[0050] Specifically, in this embodiment, during the deburring process of the forging insert 2, a drawing with deburring lines is designed and printed at a 1:1 scale. During the deburring process, the drawing is placed over the forging blank, and the deburring operation of the forging insert 2 is completed according to the deburring lines. Technicians can draw the deburring dividing lines based on the finished insert drawing and the original size diagram of the forging insert 2. A 1:1 drawing is then printed. On-site operators can determine the boundary lines of the deburring section based on the 1:1 drawing, thus facilitating the identification of the deburring area.

[0051] Specifically, in this embodiment, because the insert has an irregular shape, directly measuring and scribing on the insert blank can easily lead to errors or drawing the wrong machining surface. By printing out drawings, operators can measure and machine according to the drawings, allowing them to more intuitively observe the position of the machining surface later. At the same time, the border lines of the forged insert 2 sides are drawn on the drawings, which can serve as a self-inspection tool, avoiding the selection of the wrong insert or the machining of the wrong surface.

[0052] In some embodiments, because the coordinate system of the machining surface of the forging insert 2 is raised vertically during pre-heat machining, even if the bottom surface 23 is re-ground later, there will still be a large amount of machining remaining on the top surface of the insert. To reduce the machining amount on the CNC machine tool later, after the operator finishes grinding the insert and assembles it onto the module, the insert surface before machining is scanned and compared with the final data. If the machining allowance in the height direction of the insert is large, the insert is removed and the mounting surface of the insert is machined by lowering it. If the machining allowance in the height direction of the insert is within the normal machining allowance, normal post-heat machining is performed. When the overall machining allowance of the upper surface of the insert to be machined is large in the vertical direction, the insert can be removed from the mold base and the mounting surface of the insert can be machined by lowering it. The hardness of the mold base is much smaller than that of the insert, and the mounting surface of the insert on the mold base is flat, making machining more convenient. This avoids the large amount of machining of the forging insert 2 after heat treatment, which would affect the machining efficiency.

[0053] Specifically, in this embodiment, if the machining amount of a single insert surface is large, the programmer still needs to write a large number of programs for each insert surface. This not only increases the workload of on-site machining but also increases the workload of the programmer. However, with the mounting surface being lowered, since the mounting surface is flat, it can be removed manually by the CNC operator. At the same time, after the mounting surface is lowered, the insert is directly installed onto the mold base on the CNC machine tool, followed by post-heating machining of the surface, reducing the number of process transfers to the mold base.

[0054] In some embodiments, during the post-fired machining of the forging insert 2, due to machine tool errors and surface errors caused by subsequent grinding, directly using the reference on the die base to machine the surface of the forging insert 2 can easily lead to relative positional deviations between the surface of the forging insert 2 and the corresponding pressure core 3, support core 5, or punch surface. In severe cases, re-machining is required. Therefore, during the post-fired machining of the forging insert 2, the casting inserts at both ends of the same row are preferentially installed on the die base. Using the surface of the casting insert as the machining reference, the forging inserts 2 in the same row are machined. After machining, the casting inserts at both ends are removed, and the forging inserts 2 are replaced. Then, using the surface of the already machined forging insert 2 as the reference, the newly installed forging inserts 2 at both ends are machined. By using the forging insert 2 and the casting insert jointly installed on the die base, the machining coordinate system can be fine-tuned by checking the casting surface before machining. This reduces the misalignment between the casting insert and the forging insert 2 after machining. This ensures that the surface of the forging insert 2 coincides as closely as possible with the surface of the previous casting insert, reducing the workload for later debugging personnel.

[0055] In this embodiment, firstly, the cast inserts in the same row stored on the mold base are positioned using process pins. When assembling the forged inserts 2, they are assembled sequentially using the joint 21 surface of the cast inserts at both ends as a reference. After the middle forged inserts 2 are machined, the cast inserts at both ends are removed on the machine tool, and the forged inserts 2 at both ends are installed. The forged inserts 2 at both ends are machined using the same machining base, and the surface profile of the machined forged inserts 2 is used for calibration. By using the cast inserts as a reference, the machining coordinate system can be calibrated before machining, improving the accuracy of the profile restoration after the inserts are replaced.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A forming process for stamping dies of high-resilience parts, characterized in that, include: Step 1: Pre-fabricate the casting inserts and install them onto the mold base. Machin the mold surface according to the original data. Step 2: Quench the convex R-corners on the machined surface. After quenching, polish the entire surface to achieve the final product state. Step 3: The mold is used to shape and produce the part. The part is inspected, and the surface data of the shaping process is adjusted. The insert is reprocessed according to the new data and polished to achieve the output state. Step 4: Repeat step 3 until the part is qualified. Scan the surface data of the forming mold to form the final data, and replace the casting insert with the forging insert (2). Process the forming mold into place according to the final data. In step 1, when installing the casting insert onto the mold base, process pins are used to position the casting insert on the mold base. The outer diameter of the process pins is smaller than the pin size on the forging insert (2). In step 4, the forging is first pre-fired, leaving room for post-fired machining on the profile. After the insert is quenched, it is then finished after fire. When the forging insert (2) is processed after the fire, the casting inserts at both ends of the same row are installed on the mold base first. The forging inserts (2) in the same row are processed with the surface of the casting insert as the processing reference. After the processing is completed, the casting inserts at both ends are removed and the forging inserts (2) are replaced. Then, the newly installed forging inserts (2) at both ends are processed with the surface of the processed forging inserts (2) as the reference.

2. The high-resilience part stamping die forming process as described in claim 1, characterized in that, In step 4, when scanning the surface data of the forming mold, the upper mold base (1) and the lower mold base (4) are adjusted to the forming state, and the overall surface is scanned. When the forging insert (2) is processed after the fire, the surface of the unreplaced part on the mold base is used as the reference for the post-fire processing of the forging insert (2).

3. The high-resilience part stamping die forming process as described in claim 1, characterized in that, The casting insert is scanned separately. The forging insert (2) is processed separately before the fire. The joint (21) is left for grinding after the fire. After the forging insert (2) is quenched, the joint (21) is ground and the fire-treated forging insert (2) is assembled onto the mold base for post-fire processing.

4. The high-resilience part stamping die forming process as described in claim 1 or 3, characterized in that, When processing the forging insert (2), the reference coordinate is raised to perform pre-fire processing, and when processing after fire, the normal reference is used to install the forging insert (2) onto the mold base for post-fire processing.

5. The high-resilience part stamping die forming process as described in claim 3, characterized in that, Forged inserts (2) require a large amount of material removal. Machining is used to remove the material first, and then the material is transferred to a CNC machine tool for surface machining.

6. The high-resilience part stamping die forming process as described in claim 5, characterized in that, By designing drawings with large-scale lines and printing the drawings at a 1:1 scale, during the large-scale process, the drawings are covered on the forging blank, and the large-scale operation of the forging insert (2) is completed according to the large-scale lines.

7. The high-resilience part stamping die forming process as described in claim 4, characterized in that, After the heat treatment insert is installed on the mold base, the insert surface before processing is scanned and compared with the final data. If the machining allowance in the height direction of the insert is too large, the insert is removed and the mounting surface of the insert is lowered for processing. If the machining allowance in the height direction of the insert meets the normal machining allowance, the heat treatment is carried out normally.

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