In this link, the shape of blanking sheet metal parts must first be operated. In the corner area of the outer hole and inner hole for punching and cutting, an arc should be set to make excessive corners to prevent sharp points and reduce mold cracking caused by improper subsequent heat treatment, which affects the subsequent sheet metal construction; then, the punching And its minimum value. Under normal circumstances, when stamping sheet metal parts, it is assumed that the stamping specifications of the stamping sheet metal parts will be relatively small, which will greatly reduce the load imposed on the punching machine. But if the hypothesis is too small, the data that simply constitutes the pressure of the mold will suddenly increase, which will affect the quality of the actual mold. For example, in this link, the punching of sheet metal parts should be set according to different sheet metal parts load policies, and the length of the hole diameter should be greater than twice the hole spacing and greater than 3.00 mm. After all, it should be prevented in actual process applications. The cantilever and groove on the blanking part are set too narrow or too long, and then the intercepting width of the cantilever should be greater than 200 sheet metal thickness. Sheet metal processing.png
2 bending link
Bending link generally refers to the prevention and control of sheet metal data on the bending equipment, the process of elastic deformation through the pressure of the upper or lower mold, and plastic deformation according to the actual plan after the elastic deformation.
In the application process of this link, different parts and specifications should be selected according to the actual planning requirements, and the actual bending operation should be explained according to the thickness of the sheet metal material. According to actual bending experience, the abnormal deformation of some parts during the bending process is briefly introduced, which affects the appearance quality and practical application of sheet metal parts. Therefore, in the actual operation process, the operator should intercept the process optimization of the bending process in advance according to the actual situation to prevent subsequent deformation. At the same time, when a part needs to be repeatedly bent, a comprehensive evaluation should be made in all the bending operations to prevent the previous bending operation from affecting the subsequent bending process, so as to achieve the expected sheet metal planning strategy.
3 riveting links
In the riveting process of sheet metal parts, the sheet metal materials are deformed under pressure and then coupled together. This process is generally used for screw riveting, bolt riveting and other links. For the closed riveting operation, the nut is usually round, and part of it has embossed gears and wire notches. Therefore, the riveting process of sheet metal parts not only optimizes the quality of the original nut manufacturing process, but also prevents welding operations.
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Assuming that we want a better solution, we can first select different specifications of molds according to the height of different binding bolts in the actual riveting process, adjust the pressure release state of the riveting equipment, ensure the binding quality of the nut, and prevent the problem of parts waste. Secondly, the appropriate sheet metal specifications can be selected in the setting of the riveting structure to ensure the riveting effect and prevent the sheet metal binding links from falling off. 4 Welding link
In the cold working process of the entire sheet metal processing process, welding is one of the important methods to connect the various parts of the structure together. Therefore, under normal circumstances, the link will be operated under high temperature settings. At present, most commonly used welding methods are argon arc welding and contact spot welding.
Therefore, in the actual welding process, different welding methods should be selected according to the performance of different sheet metal parts to ensure the reduction of welding deformation and the actual power conditions of welding together. For example, in the actual welding process, firstly, we should recognize the remaining satisfactory welding operations; secondly, we need to more accurately control the length of the welded part to prevent deformation of the metal plate and optimize the load conditions of the welded joints together .
5 Conclusion
Sheet metal processing technology is closely related to modern production. In today’s rapid opening of sheet metal technology, we should understand and distinguish its processing technology and improvement methods to make sheet metal technology more open.
