The paper proposes a new method for calculating shearplane area based upon a new oblique cutting model with double edge.
根据新的斜角非自由切削模型，本文提出了新的剪切面积计算方法。
2
Variation of striper force and clearance between punch and die plate with respect to shearplane and die stress were analyzed.
分析了不同压边力和凸凹模间隙对精冲断面质量和模具应力的影响关系。
3
The results show that the frictions caused by the wall of shear box will influence the distributions of stresses in specimens and the normal pressure stresses on the shearplane.