With the continuous deepening of social construction in our country, sheet metal parts have gradually been applied in people's lives. In general, sheet metal processing is a process of cold working with a metal sheet to obtain a sheet metal fitting that meets the application requirements.

Under normal circumstances, sheet metal parts have obvious advantages such as strength, weight and cost, and have better performance to the point than traditional parts. Therefore, as of now, sheet metal parts have been gradually applied in China. In the high-tech fields such as electronics and communications, at the same time, people have put forward higher requirements for the quality and function of sheet metal parts. Therefore, appropriate optimization of the original sheet metal processing technology has become The focus of gold processing personnel research. According to the actual research, this paper believes that the optimization of the processing technology should be carried out one by one from the application of the four basic cold processing links in the processing of sheet metal parts.

1 Punching session

First of all, in the case of the blanking section, the blanking usually refers to the separation of the sheet metal material by the die of the mold, thereby realizing the separation of the sheet metal materials. This part is usually applied to the processing shape relative to each other. The relatively simple processing of parts and components, so that the processing shape is more accurate and minimize the waste of materials.

In this part, the shape of the blanking sheet metal part should be controlled first. In the corner area of ​​the punching shear and the corner of the inner hole, the arc should be set to excessively rotate the corner to avoid sharp angle and reduce subsequent The problem of mold cracking caused by improper heat treatment affects the subsequent sheet metal construction; then, the punching and its minimum should be optimized. Usually, when punching a sheet metal part, if the punching size of the punching sheet metal part is small, the load of the punching bed is greatly reduced, but if it is too small, it is easy to cause the mold to be carried. The pressure data suddenly becomes even more, which in turn affects the quality of the actual mold. For example, in this section, the sheet metal punching should be set according to different sheet metal load targets. In the basic state, the length of the hole should be more than twice the hole spacing and greater than 3.00 mm. Finally, the cantilever and groove settings on the blanking part should be avoided in the actual process application to avoid too narrow or too long, so as to improve the strength of the die edge while controlling the cantilever width of the cantilever should be greater than two hundred sheet metal thickness.

2 Bending links

The bending process usually refers to the prevention and control of the sheet metal material on the bending equipment, and the elastic deformation of the sheet metal material occurs by the pressure of the upper mold or the lower mold, and the plasticity occurs according to the actual design scheme after the elastic deformation occurs. The process of deformation.

In the application process of this link, different parts should be selected according to the actual design requirements, and the actual operation of the bending should be determined according to the thickness of the sheet metal material. According to the actual bending experience, it is most prone to local abnormal deformation in the bending process, which in turn affects the appearance quality and practical application of the sheet metal parts. Therefore, in the actual operation, it is necessary to carry out the process for the bending process. The optimization should be carried out by the operator according to the actual situation, so as to avoid the problem of subsequent deformation. At the same time, when the parts need to be bent many times, a comprehensive estimation should be made in all the bending operations to avoid the previous bending operation affecting the subsequent bending process, thus achieving the desired flaw. Gold design goals.

3 Pressure riveting

The pressing and riveting of sheet metal parts refers to the action of the sheet metal material through the pressure, so that the sheet metal material is deformed and then coupled together. This process is usually applied to the steps of screw pressing and bolting. In the case of the end of the riveting operation, the nut is usually round and has a knurled gear and wire slot. Therefore, the pressing and riveting of the sheet metal parts not only optimizes the quality of the original nut production but also avoids the welding work.

If you want to harvest a better design, first of all, you can select different specifications of the mold according to the height of different pressing bolts in the actual riveting, and adjust the pressure release of the riveting device to ensure the quality of the nut while avoiding There is a problem with the scrap. Secondly, the size of the adapted sheet metal can be selected in the step of setting the pressing and riveting structure, thereby ensuring the result of the pressing and riveting while avoiding the release of the pressing part of the sheet metal part.

4 Welding links

The welding process is one of the important ways to connect the various parts of the cold metal part of the whole sheet metal processing process. Therefore, this part is usually placed under the high temperature background. For the time being, most common welding methods are carried out by means of argon arc welding, contact spot welding, and the like.

Therefore, in the actual welding process, different welding methods should be selected according to the properties of different sheet metal parts, to ensure the reduction of welding deformation and the actual efficiency of welding. For example, in the actual welding process, firstly, sufficient welding control should be determined. Secondly, it is necessary to control the length of the welded part more accurately, and to avoid the occurrence of sheet metal deformation while optimizing the load of the welding point.

5 Conclusion.

The sheet metal processing technology is inextricably linked with modern production. In today's rapid development of sheet metal processing, we should understand and innovate its processing technology and improvement measures, so that the sheet metal process has a better development. Key words: sheet metal parts; processing technology; optimization design;