Numerical results and forming tests of typical specimens demonstrate that dimples are eliminated effectively by means of elastic cushion and multi - step mpf 通过典型的数值模拟及成形实验说明?弹性垫技术及多道成形技术消除压痕缺陷的有效性。
2.
The formation of the defective dimple and its influencing factors in multi - point forming ( mpf ) process of sheet metal were analysed mechanically and it was indicated that dimpling defect could be eliminated evidently with elastic cushion 摘要对多点成形中压痕缺陷的形成及影响因素进行了力学分析，指出弹性垫技术可以明显地消除压痕缺陷。
