Influence of High-frequency Micro-forging on Surface Residual Stress of 304 Stainless Steel Sample Fabricated by Laser Prototyping

摘要：

　　Two groups of 304 stainless steel samples different in thickness were prepared by Laser Prototyping,one of which was treated by high-frequency micro-forging.The residual stress on the sample surface was measured by strip cutting method.The results showed that the surface residual stress of the samples was tensile stress,which increased with thickness,and the residual stress began to drop while the thickness of samples arrived at a certain value.Therefore high-frequency micro-forging could regulate the surface residual stress state of the samples.Specifically,micro-forging could transform the tensile stress into compressive stress,which rose with the increase in thickness of samples and tended to be stable afterwards.

关键词： Laser prototyping 304 Stainless steel Micro-forging Residual stress

作者: Changjun Qiu Yan Zhang Yong Li Jiang Ye

作者单位: School of Mechanical Engineering,University of South China,Hengyang,421001,P.R.China

会议类型: 国际会议

会议名称: the 2012 International Conference on Manufacturing Engineering and Automation (2012年制造工程与自动化国际会议(ICMEA2012))

会议地点: 广州

会议语种:英文

页码: 1067-1070

在线出版日期: 2012-11-16（万方平台首次上网日期，不代表论文的发表时间）