Research advancements in machining of metal matrix composites through wire electro discharge machining technique

Abstract

Abstract Wire electric discharge machining, a major variant of electric discharge machining have greater capability to machine complex and intricate shape of conductive materials which cannot be machined by the conventional machining. Metal matrix composite with properties like great wear resistance, ultra lightweight, high specific strength and significant hardness are machined by wire electric discharge machining by the modern researchers. The compositions of metal matrix composites exhibit very significant role on the machining characteristics of this process such as rate of material removal, surface finish, kerf width and breakage of wire etc. A comprehensive understanding of wire electric discharge machining of metal matrix composites are discussed in this article with special attention to the effects of particles. Also, recent modifications in the machining techniques are also mentioned. Finally, the article is concluded with the scope for future work on wire EDM of metal matrix composite.