盒形件多点成形拉裂缺陷分析

Analysis of pull crack defect in multi-point forming of box-shape pieces

从材质、板厚、下压边圈的圆角半径大小、拉深系数、压边力大小以及有无润滑条件等方面入手,分析了盒形件多点成形拉裂缺陷,并作了相关的实验验证。

Pull crack defect in multi -point forming of box -shape pieces has been analysed with demonstration of relating experiment,based upon sectors such as material,plate thickness,radius of round edge of down blank holder,deep drawing coefficient,blank holding force and whether be-ing lubricated.