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本文提出了带凸缘的拉深件在拉深过程中存在瞬间超高现象(即工件总高超过该工序拉深结束时的高度),认为这是导致拉深时压扁筒壁或凸缘卷边的原因。文中分析了瞬间超高的原因,并推荐了相应的解决措施。 一、问题的提出 多工序拉深成形的带凸缘拉深件在拉深过程中常会出现筒壁失稳压扁或凸缘卷边的现象,见图1。前者将导致工件筒壁破裂,
In this paper, we propose that there is an instant ultrahigh phenomenon during the drawing process (that is, the total height of the workpiece exceeds the height at the end of the drawing process), which is considered to be the result of collapsing the cylinder wall or the flange The reason for curling. The article analyzes the reasons for the instant super high, and recommended the corresponding solutions. First, the problem raised Multi-step deep drawing with the formation of the drawing process in the drawing process often appear frustrated buckling or flange flange curling phenomenon, shown in Figure 1. The former will lead to the workpiece tube wall rupture,