电火花加工电极间隙电场分布研究

尹青峰,王宝瑞,李建原
(中国工程物理研究院 机械制造工艺研究所,四川 绵阳 621900)

摘要:以电极间隙电场分布为研究对象,通过求解拉普拉斯方程,推导得到了均匀电场中,微粒周围电场强度分布的解析表达式。通过数值仿真计算,得到了受电极尖角、微粒影响的电场分布云图。从解析计算和数值仿真计算两个方面分析了最大电场强度与电极间隙、微粒介电系数、微粒直径的关系。通过对两种计算方法得到的结果进行对比,找出了解析计算与数值计算结果存在误差的原因。
关键词:电火花加工;电场分布;解析计算;数值仿真
中图分类号:V261.6+1        文献标识码:A           文章编号:1006-0316 (2013) 01-0027-05

Study on inter-electrode gap electric field acting in electric discharge machining
YIN Qing-feng,WANG Bao-rui,LI Jian-yuan
( Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang 621900, China )

Abstract:An analysis of electric field acting on inter-electrode gap was undertaken, by solving Laplace’s Equation, an analytical formula which can describe the electric field acting around the debris in uniform electric field have been established. Some electric field acting overlays influenced by electrode shape point and debris have been obtained according numerical simulation. The connection between maximum electric field intensity with inter-electrode gap, with debris dielectric constant, with debris diameter has been investigated adopting analytical compute and numerical compute. Comparing the results, the reason cause results error has been found.
Key words:electric discharge machining;electric field acting;analytical compute;numerical simulation

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收稿日期:2012-06-13
作者简介:尹青峰(1987-),男,湖南娄底人,硕士研究生,主要研究方向为电火花、电化学复合加工技术。


 

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