PLASTIC DEFORMATION AND DENSIFICATION FOR SINTERED POWDER MATERIALS

来源期刊：中国有色金属学报(英文版)1992年第4期

论文作者：Hua Lin Zhao Zhongzhi

文章页码：82 - 87

Key words：sintered materials; plasticity theory ; densification

Abstract: Equivalent yield strength of sintered powder materials is determined by experiments, and the following yield condition is constructed based on it. Experiments on uniaxial compression, and plane strain, closed die upsetting have been done using sintered copper, and the relation between the deformation resistance and compactness of the prefabricated preform is analysed. A design principle for the prefabricated preform density is proposed, and the effectiveness of shear plastic deformation to densification is pointed out.