ABSTRACT
Aluminium metal matrix composites are gaining much attention day by day due to its uses in various fields of engineering. It could be used in automobile, aerospace and many more industrial applications due to its key properties such as high strength, low density and excellent wear resistance, which makes it worthier than other metals. In this study, a hybrid optimization approach is used for assessment of the electrical discharge machining (EDM) parameters on Al7075-B4C and TiC hybrid composite. A new combination, the Taguchi method, coupled with the ELECTRE approach, has been suggested and used to optimize EDM parameters. The significant parameters, namely pulse current (Ip), pulse duration (Ton), duty cycle (Tau) and the discharge voltage (V), are considered, and the effect on the responses such as surface roughness (Ra), material removal rate (MRR), tool wear rate (TWR) and radial overcut (ROC) are investigated.
