The research on failure of pressing die

摘要：

The pressing die, used for formation of sprayer material, was failed in form of surface crack after used for a short time. In this paper, the microstructure, mechanical property and fracture mode of the die were studied with optical microscope, scan electronic microscope and micro-hardness instrument. The results showed that the microstructure of die material was composed normally of pearlite and ferrite of carbon steel 45 and was little higher hardness which suggested work hardening in the steel. The fracture mode of the die was mainly plastic, with some fatigue. The conclusion was that lack of steel strength was main reason for the dies early failure.

关键词： Die Microstructure Failure

作者: Bin Xu Baiyang Lou

作者单位: Institute of Material and Surface Engineering, The MOE Key Lab of Mechanical Manufacturing and Automation, Zhejiang University of Technology, Hangzhou 310014, China

会议类型: 国际会议

会议名称: 国际断裂力学2007年会(Fracture Mechanics and Applications 2007)

会议地点: 长沙

会议语种:英文

页码: 349-350

在线出版日期: 2007-11-01（万方平台首次上网日期，不代表论文的发表时间）