带变薄普通拉深的力学分析

Mechanical analysis on deep-drawing with ironing

防止18-8型不锈钢技深件纵向开裂的有效措施之一是在拉深时采用小于板料厚度的凸凹模间隙。本文针对这种带变薄的普通拉深变形进行了力学分析，推导出拉深力的计算表达式。

One of the valid method to reduce the vertical breaking in deep-drawing of 18-8stainless steel is to adopt a die clearance which is less than the plate thickness. According to this deep-drawing process withironing mechanical analysis is carried out and the formula to calculate forming stress is deduced in this paper.