Clarification of EDM gap phenomena using transparent electrodes
Clarification of EDM gap phenomena using transparent electrodes
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DOI：
10.1016/j.cirp.2014.03.059
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发表时间：
2014-01-01
影响因子：
4.1
通讯作者：
Kunieda, Masanori
中科院分区：
文献类型：
--
作者：
Kitamura, Tomoo;Kunieda, Masanori
本文介绍了电火花加工中单脉冲放电的热源直径。为了观察放电等离子体，使用SiC和Ga2O3单晶作为电极材料，因为它们是光学透明和导电的。结果表明，等离子体直径在介质击穿后的几微秒内膨胀，且等离子体直径远大于放电坑。根据测得的弹坑直径，通过求解热传导分析的逆问题求出热源直径，发现热源直径小于等离子体直径，但大于弹坑直径。(C)2014年CIRP。
This paper describes the heat source diameter of single pulse discharge in electrical discharge machining. To observe the discharge plasma, SiC and Ga2O3 single crystals were used as the electrode material since they are optically transparent and electrically conductive. It was found that plasma diameter expands within a few microseconds after dielectric breakdown and the plasma diameter is much larger than the discharge crater. From the measured diameter of the crater, the heat source diameter was obtained by solving the inverse problem of heat conduction analysis, and it was found that the heat source diameter is smaller than the plasma diameter but larger than the crater diameter. (C) 2014 CIRP.