【摘要】 针对微细电火花单道扫描加工中电极端部及试件轮廓横截面出现的钝圆现象,给出了其产生的主要影响因素,分析了放电脉冲对正负两极的积分蚀除机理,据此开发了微细电火花单道扫描加工在正负两极的积分蚀除仿真软件,并进行了微细电火花单道扫描加工仿真研究。基于微细组合电加工样机,开展了典型截面形状工具电极的单道扫描加工实验,对工具电极与试件截面轮廓的测量结果表明,放电脉冲在正负两极的积分蚀除作用与多项工艺参数密切相关。更多还原

【Abstract】 Special arc shape phenomena during single channel scanning milling of micro-electrical discharge is introduced. Some main factors are analyzed for the phenomena. Integration erosion mechanism of electrical pulse discharged on both positive and negative poles is presented.Accordingly,simulation software on single channel scanning milling is developed. Some simulation experiments have been done to find important factors. Some discharge experiments of single channel scanning milling have been carried out relative to simulation experiments based on micro-electrical compound discharge machine tool. The profiles of tool electrode and workpiece are given. The results show that the integration erosion effect on both poles of discharge pulse is closely relative to some techniques parameters.更多还原