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Effect of Dielectric Medium on Electrode Wear in Micro-Electrical Discharge Milling
Author(s): ZENG Zhao-qi, WANG Yu-kui, WANG Zhen-long, SHAN De-bin
Pages: 83-
88
Year: 2012
Issue:
1
Journal: Nanotechnology and Precision Engineering
Keyword: micro-electrical discharge machining (EDM); 3D milling; dielectric medium; electrode wear;
Abstract: 在微细电火花加工(EDM)中电极损耗是不可避免的,而针对电极损耗的研究大都是在油工作液中,很少针对气中放电时的电极损耗进行研究.气中电火花加工普遍采用管状电极,所以为了获得尺寸更小的工件,通过反拷块可磨削出微米级的实心电极,并采用外部充气的方式,可实现微米级三维结构的气中电火花加工.实验考虑了影响气中放电电极损耗的各种因素.通过观察微细电火花三维铣削放电现象与结果,可得到气中放电的规律.由于电火花...
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