SLIP LINE METHOD FOR SINTERED POWDER MATERIALS UNDER CONDITION OF AXIAL SYMMETRY DEFORMATION

来源期刊：中国有色金属学报(英文版)1993年第3期

论文作者：Zhao Zhongzhi Hua Lin

文章页码：81 - 87

Key words：sintered powder material ;axial symmetry deformation; slip line method

Abstract: Slip line method for sintered powder materials under condition of axial symmetry is proposed based on the simplified yield condition of sintered powder materials and Haar-von Karman perfect plastic criterion. The equations of slip line and stress along slip line are derived, and numerical solutions are given. Deformation load in closed die upsetting of sintered copper cylinder is calculated by slip line method, and theoretical solutions are compared with experimental results.