Abstract: In this paper, numerical analysis of deep drawing process of sheet metal is carried out, using membrane shell model, adopting total Lagrangian formulation and J2 flow rule. Exponential stress-strain relation of the sheet and Coulomb friction at the contacting surface between the sheet and punch or die assumed. Normal anisotropy of the sheet and effects of the binder are taken into account. Criterion to predict flange wrinkling and fracture are introduced. The computation is compared with experimental data.

Key words: 板材拉深, 数值计算, 有限元分析