金属粉末零件压制过程有限元模拟的研究  

Finite Element Simulation of Metal Powder Compaction Processes

作　　者：汪俊[1] 罗思东 李从心[3] 

机构地区：[1]上海交通大学模具CAD国家工程研究中心,上海市200030 [2]上海汽车工业总公司,上海市200031 [3]上海交通大学,上海市200030

出　　处：《中国机械工程》1997年第4期40-43,共4页China Mechanical Engineering

摘　　要：论述粉末压制过程的建模理论．建立屈服准则中静水应力影响因子与粉末压坯密度之间的动态关系式。在此基础上．运用有限元方法对回转类粉末压制零件进行计算机模拟，结果印证理论分析，并与实验结果相符。After describing the modelling methods of powder compacting process. the pa per established a formula representing the rela tionship between the influence coefficient of hy drostatic stress in yield condition and the relative density of powder compact. Furthermore, finite element method was applied in simulation of compaction of rotary parts. With the comparison between experiment and predication, a good a greement was reported.

关 键 词：粉末压制 建模 数学模型 有限元 

分 类 号：TF124.31[冶金工程—粉末冶金]