Analysis of the causes of wrinkling and stacking of stamping parts

In recent time, stamping technology has developed rapidly, but there are still some problems. As far as automotive stamping parts are concerned, one of the most common problems is wrinkling and stacking. So why is there such a problem? If we encounter such a problem, what measures should we take to deal with it? Next, we will discuss this issue. We must admit that, as far as the current situation is concerned, the wrinkle problem can be described as a common problem faced by the industry. It can be said to be a major problem that plagues the continued development of the stamping parts industry. The wrinkling problem can cause a series of undesirable consequences, and if it is serious, it can even cause overlapping materials and make the situation worse. Wrinkles will have a direct adverse effect on the appearance of the stamping product. Especially after painting, it may even be impossible to repair and have to be scrapped, thus causing waste. So, why does this happen? In response to this problem, we conducted an analysis. The main reason is that during stamping, the flow of the sheet material is uneven, forming extrusion, and it cannot be eliminated in time. Therefore, we believe that if we want to solve the wrinkle problem of stamping parts, we can start with equalizing the flow speed of the sheet to find a solution. Therefore, we believe that there are four measures that can be adopted, namely: 1. Increase the resistance of the sheet material when flowing; 2. Do strong pressure treatment on the wrinkled part of the stamping part to reduce the distance between the profiles as much as possible ; 3. According to the situation, appropriately adjust the shape of the drawing bead, for example, you can change the round bar to a square bar, etc.; 4. Appropriately increase the size of the blanking piece and increase the effect of the blank holder. Of course, if we find the wrinkle problem of stamping parts during the production process, we can also take some temporary measures to deal with it. The main methods are: appropriately increase the blank holder force, pad tape at the appropriate position, readjust the balance weight, and reduce The local balance weight gasket may increase the resistance of the local sheet metal flow. 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