In order to improve the formability of the sheet, a curve of variable BHF (VBHF) was designed by us. The results illustrated that the VBHF could not only prevent wrinkle, but also it could prevent crack.
最后为了改善板料的成形性能,设计了一条变压边力曲线,结果表明此压边力不仅能够防止起皱,而且有效的防止拉裂。
参考来源 - 镀层薄板冲压成形有限元模拟·2,447,543篇论文数据，部分数据来源于NoteExpress
It is showed that the limit drawing height could be greatly improved as a variable BHF deep-drawing process was adapted.
结果表明，变压边力拉深工艺能够极大提高板料的极限拉深高度。
The simulated thickness with separation force is smaller than that with blank-holder gap because the BHF is variable in the flange region.
采用分离力时的模拟厚度比压边间隙小是由于法兰区域的变压边力。
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