期刊
INTERNATIONAL JOURNAL OF ENGINEERING RESEARCH IN AFRICA
卷 22, 期 -, 页码 112-120出版社
TRANS TECH-SCITEC PUBLICATIONS LTD
DOI: 10.4028/www.scientific.net/JERA.22.112
关键词
EDM; OHNS; Copper and Brass Electrodes; MRR; TWR
资金
- Dr. M.G.R. Educational and Research Institute University, Chennai, India
Electrical Discharge Machining is a machining method primarily used for hard metals or those that are impossible to be machined with traditional techniques. The experimental investigation of material removal rate and tool wear rate during machining of oil hardened non-shrinking steel with brass and copper electrodes using EDM machine was carried out in this paper. This investigation presents the analysis and evaluation of heat affected zones and surface finish of the work piece using different tool electrodes and varying the machine parameters. The commercial grade kerosene oil has been used as dielectric fluid. The effect of various important EDM parameters such as discharge current (Ip) 2 to12A, pulse duration (Ton and Toff) and sparking voltage (V) of 80 +/- 5% have been used to yield the response in terms of Material Removal Rate (MRR) and Tool Wear Rate (TWR). Further a detailed analysis of the heat affected regions was also been carried out by using scanning electron microscopy.
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