Effect of WEDM Parameters on MRR of Carbidic Austempered Ductile Iron

P. L. Pandit, Dr. S. A. Patil

Abstract: Industrial and technological development needs high strength, high wear resistance and durable material. So, researchers are developing new material having the above mentioned properties. CADI is newly developing material which can be used for dies, drill bits, piston rings etc. Among the various non-conventional manufacturing processes, Wire Electrical Discharge Machining (WEDM) is one which is used for machining hard material with intricate shapes. In this study, experiments were conducted using Taguchi-s L9 orthogonal Array. Optimal levels of process parameters were identified using S/N ratio Analysis and the relatively significant parameters were determined by Analysis of Variance (ANOVA). The variation of output responses with process parameters were mathematically modeled by using linear regression analysis method and the models were checked for their adequacy.

Keywords: Carbidic austempered ductile iron CADI, WEDM, MRR, Taguchi and ANOVA