By using program DYNAFORM to simulate the drawing process of the elliptical box-like drawn parts, effect on the formability of sheet metal parts of n and r was studied.

• 采用DYNAFORM软件通过对椭圆盒的拉深成形过程进行数值模拟，研究了应变硬化化指数n和厚向异性系数，对零件成形性能的影响。