圆锥杯形件超塑胀形的力学分析

 研究了圆锥杯形件的变形模式,将其成形过程分为三个阶段。根据超塑性力学的基本方程和有关假设,对每一阶段的成形过程进行了分析,得出了各阶段的最佳加载曲线方程,不同加载方式下成形时间的计算方法以及最小厚度等几何参数的计算公式。最后,进行了简短的讨论。

MECHANICAL ANALYSIS OF SUPERPLASTIC BULGING OF CONICAL CUP FROM SHEET METAL

This article studied the deformation mode during superplastic bulging of conical cup from sheet metal. The forming process was divided into three stages. Based on the fundamental equations of superplastic mechanics and relevant physico-geometric assumptions, the analysis for such a forming process was conducted stage by stage. The equations of optimal loading curves in each stage, the methods for. calculating forming time under different loading conditions, and the theoretical formulae used for computing the minimal thickness and some other geometric parameters of the component to be bulged were derived. Finally, a brief discusson was given.