摘要
电子束加工工艺会在工件上产生较大的温度梯度,该条件下产生的残余应力是产生裂纹,破坏零件机械结构强度的主要因素。因此对应力场开展深入的模拟研究十分必要。本文从电子束工作原理与特点出发,总结了国内外电子束工艺在焊接、熔炼、表面处理等方面关于残余应力的研究进展,并且对其中的不足与未来发展做了论述。
The electron beam machining(EBM) can produce a great temperature gradient in the workpiece. The residual stress derived from this condition is the main factor to produce cracks and destroy the mechanical structure strength of the parts. Therefore, it is necessary to carry out deep simulation research of stress field. Based on the working principle and characteristics of electron beam, the research progress of residual stress in welding, smelting and surface treatment of electron beam technology were summarized in China and abroad, and its shortcomings and future development were discussed.
作者
刘海浪
王小宇
王波
祁正伟
张国培
LIU Hailang;WANG Xiaoyu;WANG Bo;QI Zhengwei;ZHANG Guopei(School of Mechanical and Electrical Engineering,Guilin University of Electronic Technology,Guilin 541004,China)
出处
《热加工工艺》
北大核心
2019年第21期21-25,共5页
Hot Working Technology
基金
广西制造系统与先进制造技术重点实验室主任基金项目(17-259-05-0068)
桂林电子科技大学研究生科研创新项目(2018YJCX06)
关键词
电子束加工
残余应力场
模拟
研究现状
electron beam machining
residual stress field
simulation
research status
