盒形件拉深经常出现法兰、侧壁和球底皱纹,侧壁回弹、凹陷、叉口、底部鼓起、凹瘪等弊病,影响零件表面质量和配合尺寸精度。因此,很有必要进行探讨研究,以提高盒形件拉深质量。 Box-shaped parts often appear deep flange flange, sidewall and ball at the end of wrinkles, side walls rebound, depression, fork mouth, bottom bulge, depression and other ills, affecting the surface quality and parts with dimensional accuracy. Therefore, it is necessary to conduct research to improve the quality of box-shaped drawing.