放电加工方法及其机理的数值模拟研究综述  

A Review of Electric Discharge Machining Methods and Numerical Simulation Studies of the Mechanism

作　　者：周建平[1] 陈小康 李雪芝[1] 周宗杰[1] 董行 汪兵兵[1] 赵一楠 ZHOU Jianping;CHEN Xiaokang;LI Xuezhi;ZHOU Zongjie;DONG Hang;WANG Bingbing;ZHAO Yinan(School of Mechanical Engineering,Xinjiang University,Urumqi Xinjiang 830017,China)

机构地区：[1]新疆大学机械工程学院,新疆乌鲁木齐830017

出　　处：《新疆大学学报（自然科学版）（中英文）》2023年第5期513-525,共13页Journal of Xinjiang University(Natural Science Edition in Chinese and English)

基　　金：国家自然科学基金“航空薄壁零件低压微弧铣削加工放电通道演化规律与变形抑制方法研究”(52265061);新疆维吾尔自治区“天池英才”青年博士项目“高效精密深小孔低压微弧等离子体辅助电解加工方法”(51052300550).

摘　　要：从数值模拟角度出发,以放电状态作为主要区分点,围绕放电过程中所涉及的放电通道、能量分配比例、放电凹坑和材料去除过程等,归纳总结了目前放电加工方法、电火花和电弧加工机理的研究进展,并预测未来放电加工机理的数值模拟研究趋势.重点围绕等效热源、多物理场和分子动力学复合模拟、电弧加工机理三方面进行研究,以期更加准确地揭示放电加工背后机理,解决电弧加工效率和质量难以兼得的难题.From the perspective of numerical simulation,taking the discharge state as the main differentiation point,focusing on the discharge channel,energy distribution ratio,discharge crater,and material removal process involved in the discharge process,this paper summarizes the current progress of the research on the electric discharge machining(EDM)method,the mechanism of electric spark machining and electric arc machining,and puts forward the trend of the future numerical simulation research on the EDM mechanism,focusing on the equivalent heat source,multi-physics field and molecular dynamics composite simulation,and electric arc machining mechanism,to reveal more accurately the mechanism behind EDM and to solve the difficult problem that it is difficult to achieve both efficiency and quality of electric arc machining.

关 键 词：放电加工 数值模拟 加工机理 电火花加工 电弧加工 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]