Microcosmic mechanism of electrical discharge machining ablation on titanium alloy

被引：0
作者：
Wang Xiangzhi
Liu Zhidong
Hui Zhiguang
Qiu Mingbo
Tian Zongjun
Cao Zhongli
机构：
[1] Nanjing University of Aeronautics and Astronautics,College of Mechanical and Electrical Engineering
来源：
The International Journal of Advanced Manufacturing Technology | 2016年 / 83卷
关键词：
EDM; Microcosmic mechanism; EDM ablation; Single pulse; Titanium alloy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Single-pulse experiment was conducted to study the mechanism of electrical discharge machining (EDM) ablation on titanium alloy. The discharge equivalent model of EDM ablation was established, and changes in the oxide layers between electrodes of EDM ablation was analyzed in this paper. Thermodynamic and kinetic analysis of titanium alloy EDM ablation showed that sufficient discharge energy was available to ignite titanium alloy and that titanium alloy possessed the conditions necessary for sustained combustion. The discharge gap of EDM ablation, the polarity effect, the erosion pit, and the morphology of the surface oxide layer were also studied. Results show that the ablation efficiency of titanium alloy was better than that of conventional EDM and that the morphology of the surface oxide layer was consistent with the interpretation of its ablation mechanism.
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页码：929 / 935
页数：6
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