The application of equivalent draw beads to sheet forming blank design is studied and the ideal of blank design using revering method combined with equivalent draw bead is conceived.
研究了在板料成形毛坯设计中加入等效拉延筋进行计算的毛坯设计方法，提出了利用反向方法结合等效拉延筋进行毛坯设计的设计思想。
The complementary surface is built through the method of index of similar event , the position of draw bead and stamping direction and others process parameters are made certain at the same time.
通过事例检索，设定了工艺补充面形状、拉延筋排布位置以及冲压方向等工艺参数；
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