在生产中,我们碰到一个较为特殊的冲压零件(见图1),它为圆管形件,坯料为无缝钢管。该件的加工工艺如下:1.先将钢管用开边压型模将其对半开边并压成型(半成品如图2);2. In production, we encountered a more special stamping parts (see Figure 1), it is a round pipe, the billet of seamless steel pipe. The pieces of the processing technology is as follows: 1. The first steel with the pressure on the open side of the mold and the semi-open side of the pressure molding (semi-finished products shown in Figure 2);