Author : T.Vijaya Babu and J.S Soni

WEDM is mainly used for machining very hard and tough material like super alloys. Application of WEDM is mostly found in aerospace, die making etc. industries due to high accuracy and precision work. Inconel is mainly a super alloy which is mixture of nickel and chromium, which is very high melting point and strength. Due to these properties Inconel is mainly machined by WEDM. In this to optimize the different process parameters like pulse on time, pulse off time and peak current for the surface roughness. Taguchi L9 orthogonal array along with ANOVA is used for optimize the different parameters so that minimum surface roughness obtained. From the experiment results found that pulse on time is the most significant factor and peak current is an insignificant factor.

Keywords: WEDM, Inconel 625, Taguchi method, ANOVA, Optimization

Article published in International Journal of Current Engineering and Technology, Vol.7, No.3 (June-2017)