ABSTRACT
Metal-matrix composites (MMCs) have been increasingly used in automotive and aerospace industries because of their superior properties compared to unreinforced alloys. These materials are difficult to manufacture by the conventional machining methods because of the hard and abrasive reinforced particles. The present work focuses on the preparation of MMCs and investigates the effect of current, pulse on time and pulse off on the metal removal rate of drilling by electrical discharge machining (EDM) of the prepared Al-Al2O3p metal matrix composites. Experiments have been conducted on the electric discharge machine, according to the principles of Taguchi’s design of experiments method.
