Investigation On Wire Cut Edm Process Of Ancomposite Material On Sr And Mrr By Varying The Parameters To Optimize The Machining Parameters

Abstract

The objective of the current thesis is to investigate the effects of the different process in Wire cut EDM process parameters on the surface quality, maximum material removal rates and obtain the optimal sets of process parameters so that the quality and MRR of machined parts can be optimized. Experiments are conducted on the composite material (Al 6061 (90.5%) + SCi (7.5%) + Graphite (2%)) pieces by varying parameters. The process parameters varied and their respective values are Pulse Time on - 100µsec, 150 µsec, 200µsec & Pulse Time off – 52µsec, 56µsec, 60µsec, Servo Voltage – 30V, 50V, 70V and Wire Feed – 2mm/min, 3mm/min, 4mm/min. Other parameters are kept constant such as Wire diameter - 0.3mm, Peak Current – 1.1Amp, Coolant is Distilled water, Wire Tension – 7Kgf. The optimization is done by using Taguchi technique considering L09 orthogonal array. Optimization is done in Minitab software.