What are the consequences of mold workpiece strains and their solutions?

2021-03-23 18:00:22 admin

What are the consequences of mold workpiece strains and their solutions?


Strain problem of automobile mold workpiece




The common feature of drawing (drawing, stretching), bending, flanging, sheet roll forming and other types of molds is that during the molding process of the workpiece, the contact surface of the mold and the processed material must slide relatively. Generally speaking, the processed materials are mostly various steel materials and various types of coated steel plates, and the molds are generally made of steel. A big problem in this type of working condition is that during the molding process, the surface of the workpiece and the mold is prone to strain, which is also called napping, scratching, or wire drawing. The consequence of auto mold strain is to affect the appearance of the product and the quality of the product. In some cases, the surface of the workpiece is strained, which is a waste product. When the strain is severe, it will cause seizure and normal production cannot be carried out. The working pressure of automobile mold forming is relatively high or the strain of austenitic stainless steel materials is particularly serious when forming. For this phenomenon, there is still a lack of systematic research in China, and there is no effective guiding principle for the choice of its solution, while the opposite is true in foreign countries. This article combines the author's years of scientific research and practical experience to analyze this problem and introduce its solution in more detail.