A　SURFACE　DEFECT　PREDICTION　METHOD　FOR　METAL　FORMING　PROBLEM

来源期刊：中国有色金属学报(英文版)1994年第4期

论文作者：Peng Yinghong Ruan Xueyu Zuo Tieyong

文章页码：62 - 65

Key words：continuous extrusion forming; surface defect prediction method ;rigid viscoplastic FEM

Abstract: On the basis of the rigid viscoplastic FEM theories, a surface defect prediction for plastic forming process by FEM numerical simulation has been deeply studied. Some technical treatments and algorithms of defect prediction are proposed. Using this method, the processes of defect initiation and development during CONFORM process are predicted successfully, and some critical technological parameters are obtained. Therefore, it is also an extension for application fields of rigid viscoplastic FEM to predict forming defect.