Various processes and possible problems of stamping parts

Various processes of stamping parts and possible problems: The processing and production of stamping parts is efficient and easy to operate, and it is easy to complete mechanization and automation. This is because stamping relies on punching dies and stamping equipment to complete the processing. The number of strokes of ordinary presses is It can reach dozens of times per minute, and the high-speed pressure can reach hundreds or even thousands of times per minute, and it is possible to get a punched part for each stamping stroke. In the stamping process, the surface of the workpiece is only in contact with the pressure liquid, and the pressure process is steep. Therefore, the stamping part changes evenly, a symmetrical pressure distribution can be obtained, and a much better smooth surface can be obtained; the key is Shorten processing time and complete batch production. Of course, before producing the stamping parts, it is necessary to conduct a comprehensive and detailed inspection of the data to ensure that it meets the production conditions, so as to prevent the problem from continuing to the workpiece. Based on past experience, the selection of stamping parts data should coordinate the brand, thickness, standard size and so on. As long as reasonable plates are selected, it is possible to process into high-quality stamping parts. When choosing a processing plant for stamping parts, we must also pay attention to the planning of stamping parts, and must strictly follow the drawings approved by the rules and procedures, and meet the relevant specifications of the industry; the accuracy of stamping parts; and the requirements of stamping parts and die technology, molds It must also be produced in accordance with the approved drawings, so as to improve product quality and increase the service life of the mold. Taking into account the importance and particularity of stamping parts, it is necessary to ensure the integrity of the function when it is produced or stored. Therefore, a good way is to place it in a sealed box or in a relatively closed space. There will be fewer influencing factors, so that the product will not be fully protected. Compared with other workpieces, stamping parts have the characteristics of light weight, thin thickness and good rigidity. Its standard service is ensured by the mold, so the quality is stable and generally can be used without mechanical cutting. In addition to the traditional use of presses and steel molds to make stamping parts, various special stamping forming processes such as hydroforming, spinning forming, superplastic forming, explosive forming, electro-hydraulic forming, electromagnetic forming, etc. have also developed rapidly. The level has advanced to a new height. Most of the steel products are made by stamping. Stamping can produce workpieces with ribs, ribs, undulations or flanges that are difficult to make by other methods to improve their rigidity. Compared with castings and forgings, stamping parts have the characteristics of thinness, uniformity, lightness, and strength. The precision of the workpiece can reach the micron level, and the repeatability is high, the standard is the same, and it can punch out holes, bosses, etc. Stamping parts rely on presses and molds to apply external force to plates, strips, pipes and profiles, so that they are plastically deformed or separated, and then forming processing methods to obtain workpieces of required shape and size. In this process, it is inevitable that some problems will be encountered. How to deal with and deal with it? When the section quality and dimensional accuracy of the workpiece are required to be high in the processing of stamping parts, the trimming process can be added after the punching process or the fine punching process can be directly selected. In order to improve the stability of the fine stamping process, sometimes it is necessary to increase the number of processes to ensure the quality of the stamping parts. In many cases, the number of processes for a zigzag part mainly depends on the degree of disorder of its structure and shape, which is determined by the number of zigzag angles, relative orientation and zigzag direction. When the bending radius of the zigzag piece is less than the allowable value, a shaping process is added after the zigzag. Similarly, the number of processes for drawing parts is related to the nature of the material, the drawing height, the number of drawing steps, the drawing diameter, the material thickness and other conditions, and it needs to be confirmed by the drawing process accounting. When the corner radius of the drawn part is small or the dimensional accuracy requirements are high, it is necessary to add a shaping process after drawing. On this basis, the confirmation of the number of stamping processes should also conform to the company’s existing mold making capabilities and stamping equipment. The mold making ability should be able to ensure the corresponding improvement of mold processing and installation accuracy, otherwise the number of processes can only be added. For the blanking of workpieces with simple shapes, single-process molds are used; on the contrary, for stamping parts with messy shapes, because the structure or strength of the mold is limited, the internal and external generalization should be divided into several parts, which requires multiple stamping processes . Related news: The characteristics of the main materials of stamping parts, the treatment of common problems of stamping parts, the characteristics of scaffolding stamping parts and the importance of inspections