Material distribution method and manufacturing method of punch forming component and vehicle

Abstract

The invention relates to the technical field of vehicle sheet metal part stamping, in particular to a material distribution method and manufacturing method of a stamping forming component and a vehicle. The material distribution method comprises the steps that the stamping forming component is flattened, and a main body element of the stamping forming component is determined; the outer contour of the main body element extends outwards by a preset length, a segmentation contour line is obtained, and a plurality of auxiliary elements connected with the main body element are obtained through segmentation with the coincidence line of the segmentation contour line and the punch forming component as the boundary; and the stamping waste area of the main body element serves as a stamping blank corresponding to the auxiliary element, and a material distribution scheme of the stamping forming component is obtained. Consumable materials of a punch forming component can be reduced, and the material utilization rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of stamping of vehicle sheet metal parts, and in particular to a material laying method and a manufacturing method of a stamping-formed component and a vehicle. Background Art

[0002] In order to meet the requirements of function, strength, rigidity, etc., the outer contours of automotive sheet metal parts are currently in various formats. Many parts have irregular contours and protruding parts. After the parts are unfolded, the shape of the stamping blank is also irregular, which leads to a large waste area of ​​the stamping blank and low material utilization. Summary of the invention

[0003] The object of the present invention is to provide a material distribution method, a manufacturing method and a vehicle for a stamped component, which can reduce the consumables of the stamped component and improve the material utilization rate.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows: In a first aspect, the present invention provides a method for laying materials of a stamped component, comprising: Flatten the stamped component to determine the main body of the stamped component; Extend the outer contour of the main component outward by a preset length to obtain a segmentation contour line, and use the coincidence line of the segmentation contour line and the stamped component as the boundary to segment and obtain a plurality of auxiliary components connected to the main component; The stamping waste area of ​​the main component is used as the stamping blank corresponding to the auxiliary component to obtain the material distribution plan of the stamped component.

[0005] Furthermore, the stamping waste area of ​​the main component includes an external waste area and an internal waste area. According to the size of the auxiliary component, the external waste area or the internal waste area is used as the stamping blank corresponding to the auxiliary component.

[0006] Furthermore, the determination of the stamping blank of the main component includes: calculating and determining the initial size of the blank based on the unfolding plane of the main component, and the dividing contour line is completely within the range of the blank; the stamping blank of the main component is provided with a material buffer zone of preset width at the edge position of the unfolding plane of the main component.

[0007] Furthermore, the stamping blank is a regular quadrilateral that can completely cover the segmentation contour line.

[0008] Further, the stamping blank is a rectangle that can completely cover the segmentation contour line; The length of the stamping blank = the unfolded length of the main component + 2 the first compensation amount; The width of the stamping blank = the expanded width of the main component + 2 second compensation amount; The first compensation amount and the second compensation amount are reasonably set according to the size of the main component and the stamping process.

[0009] Furthermore, it also includes, after dividing the main component and the auxiliary components connected to the main component by taking the dividing contour line and the coincidence line of the stamped component as the boundary, verifying the stress distribution of the main component and the auxiliary components after division through finite element analysis, and optimizing the dividing contour line according to the stress distribution result.

[0010] In a second aspect, the present invention provides a method for manufacturing a stamping component, comprising: Providing a stamping blank, the stamping blank is divided into zones according to the above-mentioned method for laying out the stamping-formed component, the stamping blank comprising a main component stamping area and an auxiliary component stamping area arranged in the stamping waste area of ​​the main component; Punching the punching blank to obtain a main component and a plurality of auxiliary components; A plurality of the auxiliary components are fixedly connected to the main component to obtain a stamped component.

[0011] Furthermore, the accessory element is fixed to the main element by welding, screwing, gluing or riveting.

[0012] Furthermore, a first overlapping portion is provided at a corresponding connecting position between the main element and the auxiliary element, and a second overlapping portion corresponding to the first overlapping portion is provided on the auxiliary element.

[0013] In a third aspect, the present invention provides a vehicle, comprising a stamped component, wherein the stamped component is manufactured by the above-mentioned method for manufacturing a stamped component.

[0014] The present invention has the following unexpected beneficial effects: The present invention obtains a segmentation contour line by extending the outer contour of the main component outward by a preset length, and uses the coincidence line of the segmentation contour line and the stamping component as the boundary to obtain a plurality of auxiliary components connected to the main component; and then uses the stamping waste area of ​​the main component as the stamping blank corresponding to the auxiliary component to obtain the material distribution scheme of the stamping component. With such a configuration, on the one hand, the overall outer contour size of the stamping component is reduced, so when manufacturing the stamping component, a smaller stamping blank can be selected, thereby reducing the material consumption of the stamping component. On the other hand, in the traditional method, stamping waste is often treated as waste, while the present invention produces the auxiliary components by embedding them in the stamping waste area of ​​the main component at the same time, so that small parts do not need to develop mold tooling separately, and no additional tooling costs are required, thereby realizing the reuse of waste without increasing the additional mold tooling costs, improving the material utilization rate, and thus reducing the production and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention.

[0016] Figure 1 A schematic flow chart of a method for laying materials of a stamping-formed component according to an embodiment of the present invention is shown.

[0017] Figure 2 A schematic diagram of a cloth solution for a front cover lock pin reinforcement in the prior art is shown.

[0018] Figure 3 A schematic diagram of a fabric solution for a front cover lock pin reinforcement according to an embodiment of the present invention is shown.

[0019] Figure 4 A schematic diagram comparing the fabric solutions of the rear seat reinforcement plate of the prior art and the embodiment of the present invention is shown.

[0020] Figure 5 A schematic flow chart of a method for manufacturing a stamping component according to an embodiment of the present invention is shown.

[0021] Figure 6 A schematic diagram of the manufacturing process of the front cover lock pin reinforcement in the prior art is shown.

[0022] Figure 7 A schematic diagram of the manufacturing process of the front cover lock pin reinforcement member according to an embodiment of the present invention is shown.

[0023] Figure 8 A schematic diagram of the manufacturing process of the rear seat reinforcement plate described in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0024] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0025] In one embodiment, see Figure 1 As shown, the present invention provides a method for laying materials of a stamping component, which comprises: The stamped component is flattened to determine the main body components of the stamped component.

[0026] The outer contour of the main component is extended outward by a preset length to obtain a segmentation contour line, and the coincidence line between the segmentation contour line and the stamping formed component is used as a boundary to segment and obtain a plurality of auxiliary components connected to the main component.

[0027] The stamping waste area of ​​the main component is used as the stamping blank corresponding to the auxiliary component to obtain the material distribution plan of the stamped component.

[0028] With such arrangement, on the one hand, the overall outer contour size of the stamped component is reduced, so when manufacturing the stamped component, a smaller stamping blank can be selected, thereby reducing the material consumption of the stamped component. On the other hand, in the traditional method, stamping waste is often treated as waste, while the auxiliary components of the present invention are embedded in the stamping waste area of ​​the main component and produced at the same time. Small parts do not need to develop molds and tooling separately, and no additional tooling costs are required, which realizes the reuse of waste without increasing the cost of additional molds and tooling, improves material utilization, and thus reduces production and manufacturing costs.

[0029] It should be noted that the determination of the main body components requires comprehensive analysis from multiple dimensions. Exemplarily, the determination of the main body components can be comprehensively determined from the following four dimensions.

[0030] 1) Geometric feature analysis: Autoform software is used to reverse unfold the stamped components, retain key forming features (such as bosses, flanges, etc.), and establish a distribution cloud map of the curvature radius of the unfolded parts. The areas with a curvature change rate less than the first preset value are preferentially divided into main components.

[0031] 2) Functional priority division, with the structural area that bears the main load in the stamped component (such as the reinforcement plate of the B-pillar of the car) as the main element.

[0032] 3) Material flow simulation: Use Autoform to perform stamping simulation, analyze the material flow trend, and mark the area with thickness reduction rate less than the second preset value as the main component.

[0033] 4) Structural continuity judgment: use the minimum spanning tree algorithm to identify the maximum connected area to ensure that the number of connection nodes between the main component and the auxiliary component is ≥ the third preset value.

[0034] As a preferred embodiment of the present invention, the stamping waste area of ​​the main component includes an external waste area and an internal waste area. According to the size of the auxiliary component, the external waste area or the internal waste area is used as the stamping blank corresponding to the auxiliary component.

[0035] Specifically, the external waste area refers to the waste part formed around the main component after the outer contour of the main component extends outward by a preset length. Its shape is usually relatively regular and the area is also large. For example, in the stamping parts of the automobile body, the waste generated after the periphery of some larger planar parts is extended belongs to this category. The internal waste area refers to the waste generated by punching operations inside the main component or hollowing out due to structural design. The shape of this type of waste is often more complex and the area is relatively small. For example, for some mechanical parts with multiple mounting holes, the waste generated by punching belongs to the internal waste area.

[0036] For smaller auxiliary components, the internal waste area with complex shape but small area is selected as the blank to avoid wasting a large area of ​​external waste; while for larger auxiliary components, the larger area of ​​the external waste area is just a match, making full use of the material and reducing the overall waste generation.

[0037] By accurately matching the waste area with the size of the attached components, the need for purchasing new blanks is reduced, and the material cost is reduced. At the same time, since the waste is more fully utilized, the cost of waste disposal is reduced. And by rationally using the waste area as blanks, the stamping process is simplified to a certain extent. Because the blanks are planned in advance according to the characteristics of the waste area, the flow and forming of the material during the stamping process can be more in line with expectations, reducing process adjustments caused by inappropriate blanks.

[0038] As a preferred embodiment of the present invention, the determination of the stamping blank of the main element includes: calculating and determining the initial size of the blank based on the unfolded plane of the main element, and the dividing contour line is completely located within the range of the blank; the stamping blank of the main element is provided with a material buffer zone of a preset width at the edge position of the unfolded plane of the main element.

[0039] Based on the unfolded plane of the main component, the initial size of the blank is determined through precise geometric calculations. For example, if the main component is unfolded into a rectangle with a length of a and a width of b, the initial size of the blank should meet the requirement that the split contour line is completely within the range of the blank in the length and width directions. Assuming that the maximum distance that the split contour line exceeds the outer contour of the main component in the length and width directions is x and y respectively, the length A=a+2x and the width B=b+2y of the initial size of the blank. For the unfolded plane of the main component with irregular shape, professional CAD software is required to determine the maximum distance between the split contour line and the outer contour of the main component in each direction through boundary recognition and distance measurement functions, and then calculate the initial size of the blank. The irregular initial blank is then converted into a regular blank, and the regular blank can completely cover the irregular initial blank, reducing the difficulty of size control of the stamping blank.

[0040] The precise initial size of the blank ensures that there is sufficient material source for the auxiliary components within the segmentation contour, and the setting of the material buffer further ensures the stability of the material supply of the main components during the stamping process, thereby significantly improving the quality of stamped parts and reducing the scrap rate. In addition, the reasonable blank size design avoids excessive waste of materials and reduces the cost of blank procurement. At the same time, due to the improvement of the quality of stamped parts and the reduction of scrap, the subsequent rework and scrapping costs are also greatly reduced.

[0041] A material buffer of preset width is set at the edge of the unfolded plane of the main component. The width of the material buffer needs to be determined according to the stamping process and material properties. Generally speaking, for ordinary metal sheet stamping, if the material is thin (such as cold-rolled steel plate with a thickness of less than 1mm), the width of the material buffer can be set to 5-10mm; if the material is thick (such as hot-rolled steel plate with a thickness of more than 3mm), the width of the buffer can be appropriately increased to 15-20mm. Taking the stamping of the automobile hood as an example, the width of the material buffer at the edge of the unfolded plane of its main component may be set to 12mm.

[0042] The material buffer plays a vital role in the stamping process. During stamping, the material will flow and deform. The material in the buffer can be added to the parts of the main component where the material is insufficient, such as some complex curved transition areas or deep stretching parts, effectively preventing defects such as cracking and wrinkling in the stamped parts. At the same time, during the mold debugging and mold trial stages, the material buffer also provides a certain tolerance for the adjustment of process parameters, which is convenient for optimizing the stamping process. When faced with fluctuations in the performance of different batches of materials or mold wear, the quality of the stamped parts can be guaranteed by adjusting the process parameters and using the material in the material buffer, which enhances the adaptability of the stamping process to various changes in production conditions.

[0043] Furthermore, the stamping blank is a regular quadrilateral that can completely cover the segmentation contour line. In the material procurement link, regular quadrilateral blanks are easy to standardize, are in sufficient supply on the market, are easy to purchase and have a relatively stable price. For example, the length and width of common rectangular blanks are easy to measure and record, which facilitates communication with suppliers and enables quick acquisition of required specifications. During the stamping process, the positioning and installation of regular quadrilateral blanks in the mold are simpler. Due to its regular shape, when the punch press is working, the blank is subjected to more uniform force, which can effectively reduce the stamping scrap rate caused by blank positioning deviation. Moreover, regular quadrilateral blanks are also more convenient in subsequent secondary processing operations such as cutting and splicing, which can improve production efficiency.

[0044] Further, the stamping blank is a rectangle that can completely cover the segmentation contour line; The length of the stamping blank = the unfolded length of the main component + 2 the first compensation amount; The width of the stamping blank = the expanded width of the main component + 2 second compensation amount; The first compensation amount and the second compensation amount are reasonably set according to the size of the main component and the stamping process.

[0045] The first compensation amount and the second compensation amount of the present invention are not determined arbitrarily, but need to be reasonably set according to the size of the main component and the stamping process. For example, if the size of the main component is large, the range and degree of material flow during the stamping process will also increase accordingly. At this time, it is necessary to increase the first compensation amount and the second compensation amount to ensure that the blank has enough material to meet the forming requirements of each part within the segmentation contour line. If the main component is a rectangular flat plate with a length of L and a width of W, after analyzing and evaluating the stamping process, it is determined that a compensation amount of 5mm needs to be reserved in the length direction (that is, the first compensation amount is 5mm) and a compensation amount of 3mm needs to be reserved in the width direction (that is, the second compensation amount is 3mm). Then the length of the stamped blank is set to L+2×5mm=L+10mm, and the width is set to W+2×3mm=W+6mm.

[0046] In one example, the fabric of the front hood lock pin reinforcement of a vehicle is used as an example for analysis and explanation. Figure 2 As shown, in the prior art, the rectangular stamping blank corresponding to the front hood lock pin reinforcement has a length of L1 and a width of W1. After being divided by the material distribution method of the stamped and formed components described in the present invention, a main component 1 and eight auxiliary components 2 connected to the main component 1 are obtained. Since the auxiliary components 2 are connected in the width direction of the main component 1, the consumable material of the main component 1 will be reduced relative to the width direction of the existing front hood lock pin reinforcement after being divided by the dividing contour line 3. After division, the rectangular stamping blank corresponding to the front hood lock pin reinforcement has a length of L2 and a width of W2, and accordingly: L1=L2, W1>W2. See Figure 2 As shown in FIG. 1 , after the small expanded material, i.e., the accessory component 2, is separated, the reduced dimensions of the expanded material in the width direction are x1 and x2. The reduced consumables dimensions in the width direction are x1+x2. The final expanded material of the main body is as follows Figure 3 The consumables that are reduced in width while the length remains unchanged are the consumables that are saved. Figure 2 The x1+x2 size shown is 30%~40% of W1, which means that the material utilization rate in this example is increased by 30%~40%.

[0047] In another example, the fabric of the rear seat reinforcement plate of a vehicle is used for analysis and explanation. Figure 3As shown, in the prior art, the rectangular stamping blank corresponding to the rear seat reinforcement plate has a length of L3 and a width of W3. After being divided by the material distribution method of the stamping and forming component described in the present invention, a main component 1 and two auxiliary components 2 connected to the main component are obtained. Since the auxiliary component 2 is connected in the length direction of the main component 1, the consumable material of the main component 1 will be reduced relative to the length direction of the existing front cover lock pin reinforcement after being divided by the dividing contour line. After the division, the rectangular stamping blank corresponding to the rear seat reinforcement plate has a length of L4 and a width of W4, and accordingly: L3>L4, W3=W4.

[0048] As a preferred embodiment of the present invention, the method for laying materials of the stamped and formed components of the present invention also includes, after segmenting into a plurality of accessory components connected to the main component with the segmentation contour line and the coincidence line of the stamped and formed component as the boundary, verifying the stress distribution of the main component and the accessory components after segmentation through finite element analysis, and optimizing the segmentation contour line according to the stress distribution result.

[0049] For example, if the stress distribution cloud map shows that the stress concentration in certain areas is too high, it may cause defects such as cracking and deformation in these parts of the stamping parts. At this time, the segmentation contour line needs to be adjusted. For example, if it is found that the stress concentration at the connection between the auxiliary component and the main component is serious, the segmentation contour line can be appropriately adjusted to make the transition at the connection smoother and increase the connection area, thereby dispersing the stress. Through multiple simulations and adjustments, until the stress distribution meets the quality requirements of the stamping parts, the reliability and stability of the entire stamping process are ensured.

[0050] The present invention verifies stress distribution and optimizes segmentation contour lines through finite element analysis, thereby further ensuring the quality of stamping parts and improving the scientificity and practicality of the entire material distribution method.

[0051] In one embodiment, see Figure 4 As shown, the present invention also provides a method for manufacturing a stamping component, which comprises: A stamping blank is provided, which is divided into zones according to the above-mentioned method for laying out the stamped components. The stamping blank includes a main component stamping area and an auxiliary component stamping area arranged in the stamping waste area of ​​the main component.

[0052] The stamping blank is stamped to obtain a main component and a plurality of auxiliary components.

[0053] A plurality of the auxiliary components are fixedly connected to the main component to obtain a stamped component.

[0054] The present invention divides the stamping blank into zones according to a specific distribution method, sets a main component stamping zone and an auxiliary component stamping zone, and makes full use of the main component stamping waste zone for the manufacture of auxiliary components. In traditional processes, waste materials are often discarded, while this method achieves waste reuse, improves material utilization, and reduces material costs. In addition, this partitioning method can accurately control the size of the blank, avoid increasing the overall blank specifications to meet the manufacture of auxiliary components, and reduce unnecessary material consumption. At the same time, due to the early partitioning of the blank, the stamping area of ​​each component (main component and auxiliary component) is clear, providing a clear plan for subsequent stamping and assembly processes. During the stamping process, the mold can be specially designed and debugged for different areas to improve stamping efficiency and accuracy and reduce mold adjustment time.

[0055] Stamping the partitioned stamping blank is the core step to convert the blank into the required main components and auxiliary components. The quality of component forming can be ensured by setting reasonable stamping process parameters, such as stamping speed, pressure, die gap, etc. It should be noted that components in different regions have different shapes, sizes and functional requirements, so differentiated processes can be used during stamping. For example, the main component may require a higher stamping pressure to ensure material strength and forming accuracy because it bears the main load; the auxiliary components can adjust the process parameters according to their characteristics to improve production efficiency.

[0056] In one example, a manufacturing method of a vehicle front hood lock pin reinforcement is taken as an example for analysis and explanation.

[0057] See also Figure 6 As shown, in the prior art, the rectangular blank for stamping completely covers the unfolded plane of the front cover lock pin reinforcement and has a large size. Then, the rectangular blank is subjected to blanking, forming and punching processes in sequence to obtain the front cover lock pin reinforcement.

[0058] See also Figure 7 As shown, in the present invention, the rectangular blank used for stamping only covers the unfolded plane of the main component of the front cover lock pin reinforcement, and the internal waste area of ​​the stamping blank corresponding to the main component is used as the stamping blank of the auxiliary component. Compared with the prior art, the size of the stamping blank is smaller, which improves the material utilization rate.

[0059] In another example, the manufacturing method of the rear seat reinforcement plate of a vehicle is used as an example for analysis and explanation. Figure 8 As shown, the rear seat reinforcement plate is first divided according to preset rules to obtain main components and auxiliary components, and then the size of the stamping blank is determined according to the size of the main component. The external waste area of ​​the stamping blank corresponding to the main component is used as the stamping blank of the auxiliary component. Compared with the existing technology, the size of the stamping blank is smaller, which improves the material utilization rate.

[0060] See also Figure 6As shown, in the prior art, the rectangular blank for stamping completely covers the unfolded plane of the front cover lock pin reinforcement and has a large size. Then, the rectangular blank is subjected to blanking, forming and punching processes in sequence to obtain the front cover lock pin reinforcement.

[0061] Furthermore, the accessory element and the main element are fixed by welding, screwing, gluing or riveting.

[0062] Welding can provide high-strength connections and is suitable for scenarios with extremely high requirements for structural strength and relatively stable connection parts, such as some connection points of automobile frames. Through welding, the connection strength can reach 80%~90% of the parent material. Screw connection has the advantage of being detachable, which is convenient for later maintenance and replacement of components. It is widely used in the connection of stamping parts of some equipment that requires frequent maintenance, such as the connection between the internal bracket and the outer shell of electronic equipment, which is convenient for the disassembly and maintenance of the equipment. Gluing is more suitable for some structures that require sealing and are relatively small in force, such as the connection of some structural parts of the aircraft cabin in the aerospace field. It can effectively prevent gas or liquid leakage and play a certain role in buffering and shock absorption. Riveting is characterized by easy operation and reliable connection. It has strong adaptability to the connection of components of different materials. It is more common in the connection of automobile body covers and reinforcement ribs, and can withstand large shear and tensile forces.

[0063] Furthermore, a first overlapping portion is provided at a corresponding connecting position between the main element and the auxiliary element, and a second overlapping portion corresponding to and cooperating with the first overlapping portion is provided on the auxiliary element.

[0064] Such a setting greatly increases the connection area, thereby improving the stability and reliability of the connection. For example, in the structural parts of automobile bodies, the fatigue resistance of the connection parts can be improved by 30% to 40% by reasonably designing the size and shape of the overlap. When welding, the overlap can provide more sufficient welding space to make the weld stronger. When screwing, the effective length of the threaded connection can be increased to improve the bearing capacity of the thread. When gluing, the larger overlap area can enhance the adhesion effect of the glue and improve the bonding strength. When riveting, the overlap provides a better riveting foundation for the rivet to prevent the rivet from loosening.

[0065] In one embodiment, the present invention provides a vehicle, including a stamped component, wherein the stamped component is manufactured by the above-mentioned method for manufacturing a stamped component.

[0066] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or change made by a person skilled in the art on the basis of the present invention is within the protection scope of the present invention.

Claims

1. A method for laying materials for a stamped component, characterized in that: include: Flatten the stamped component to determine the main body of the stamped component; Extend the outer contour of the main component outward by a preset length to obtain a segmentation contour line, and use the coincidence line of the segmentation contour line and the stamped component as the boundary to segment and obtain a plurality of auxiliary components connected to the main component; The stamping waste area of ​​the main component is used as the stamping blank corresponding to the auxiliary component to obtain the material distribution plan of the stamped component.

2. The method for laying materials for a press-formed component according to claim 1, characterized in that: The stamping waste area of ​​the main component includes an external waste area and an internal waste area. According to the size of the auxiliary component, the external waste area or the internal waste area is used as the stamping blank corresponding to the auxiliary component.

3. The method for laying materials for a press-formed component according to claim 1, characterized in that: The determination of the stamping blank of the main component includes: calculating and determining the initial size of the blank according to the unfolding plane of the main component, and the dividing contour line is completely located within the range of the blank; the stamping blank of the main component is provided with a material buffer zone of preset width at the edge position of the unfolding plane of the main component.

4. The method for laying materials for a press-formed component according to claim 3, characterized in that: The stamping blank is a regular quadrilateral that can completely cover the segmentation contour line.

5. The method for laying materials for a press-formed component according to claim 3, characterized in that: The stamping blank is a rectangle that can completely cover the segmentation contour line; The length of the stamping blank = the unfolded length of the main component + 2 the first compensation amount; The width of the stamping blank = the expanded width of the main component + 2 second compensation amount; The first compensation amount and the second compensation amount are reasonably set according to the size of the main component and the stamping process.

6. The method for laying materials for a press-formed component according to claim 1, characterized in that: It also includes, after dividing the main component and the auxiliary component by using the coincidence line of the dividing contour line and the stamped component as the boundary, verifying the stress distribution of the main component and the auxiliary component after division through finite element analysis, and optimizing the dividing contour line according to the stress distribution result.

7. A method for manufacturing a stamped component, characterized in that: include: Providing a stamping blank, the stamping blank is partitioned according to the method for laying out a stamped component according to any one of claims 1 to 6, the stamping blank comprising a main component stamping area and an auxiliary component stamping area arranged in a stamping waste area of ​​the main component; Punching the punching blank to obtain a main component and a plurality of auxiliary components; A plurality of the auxiliary components are fixedly connected to the main component to obtain a stamped component.

8. The method for manufacturing a stamped component according to claim 7, characterized in that: The auxiliary element is fixed to the main element by welding, screwing, gluing or riveting.

9. The method for manufacturing a stamped component according to claim 7, characterized in that: A first overlapping portion is provided at a corresponding connecting position between the main element and the auxiliary element, and a second overlapping portion corresponding to the first overlapping portion is provided on the auxiliary element.

10. A vehicle comprising a stamped component, characterized in that: The stamped component is manufactured by the method for manufacturing a stamped component according to any one of claims 7 to 9.

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