Examination of wire electrical discharge machining of Al₂O₃p/6061Al composites

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• 作者：Hwa Yan ; Biing ; Tsai ; Hsien Chung ; Yuan Huang ; Fuang ; Chorng Lee ; Long
• 关键词：Wire electrical discharge machining ; Composites ; Al₂O₃p/6061Al ; Wire breaking
• 刊名：International Journal of Machine Tools and Manufacture
• 出版年：2005
• 期刊代码：84_08906955
• 类别：et
• 出版时间：March, 2005
• 卷：45
• 期：3
• 页码：251-259
• 文件大小：734 K

摘要

Alumina particle reinforced 6061 aluminum matrix composites (Al₂O₃p/6061Al) have excellent physical and chemical properties than those of a traditional metal; however, their poor machinability lead to worse surface quality and serious cutting tool wear. In this study, wire electrical discharge machining (WEDM) is adopted in machining Al₂O₃p/6061Al composite. In the experiments, machining parameters of pulse-on time were changed to explore their effects on machining performance, including the cutting speed, the width of slit and surface roughness. Moreover, the wire electrode is easily broken during the machining Al₂O₃p/6061Al composite, so this work comprehensively investigates into the locations of the broken wire and the reason of wire breaking.