Pulse electrochemical discharge machining of glass-fiber epoxy reinforced composite

被引：28
|
作者：
Sundaram, Murali [1 ]
Chen, Yu-Jen [1 ]
Rajurkar, K. [2 ]
机构：
[1] Univ Cincinnati, Dept Mech & Mat Engn, Cincinnati, OH 45221 USA
[2] Univ Nebraska, Dept Mech & Mat Engn, Lincoln, NE USA
来源：
CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2019年 / 68卷 / 01期
基金：
美国国家科学基金会;
关键词：
Composite; Machining; Surface analysis; Thermal effects; ELECTRO;
D O I：
10.1016/j.cirp.2019.04.113
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of pulse current and tool immersion depth on gas film formation and its consequences on machining quality in the pulse electrochemical discharge machining (PECDM) of glass-fiber epoxy reinforced composite are studied. The frequency and duty cycle of the pulse current were controlled for discharging at no more than single spark per cycle. As compared to ECDM with DC current, the PECDM results in smaller hole diameter and smaller heat affected zone (HAZ). Also, lower tool immersion depth results in thinner gas film and smaller HAZ in the workpiece. (C) 2019 Published by Elsevier Ltd on behalf of CIRP.
引用
收藏
页码：169 / 172
页数：4
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