1Dept. of Mechanical Engineering, University College of Engineering, Osmania University, Hyderabad
2PG Student, M.E. (DFM), University College of Engineering Osmania University, Hyderabad
3Dept. of Mechanical Engineering, University College of Engineering, Osmania University, Hyderabad
Online published on 8 May, 2017.
In the present study the process parameters effect on electrical discharge machine (EDM)such as current (I), pulse on time (Ton), pulse-off time (Toff) and flushing pressure (Fp) on material removal rate (MRR) and tool wear rate (TWR for) machining Incoloy-800 were studied. Experiments were carried out by varying the EDM process parameters to determine the best optimum value using the Taguchi experimental design method by L9 orthogonal array. Signal to noise ratio (S/N) and analysis of variance (ANOVA) was used to analyze the effect of the process parameters on material removal rate (MRR) and tool wear rate (TWR) and also for finding the optimal cutting parameters. The contribution of each parameter towards the MRR and TWR is identified and the analysis was carried out using MINITAB 17. From this study the findings will be useful for manufacturing industries to select appropriate EDM process parameters to machine Incoloy-800.
Material removal rate (MRR), Tool wear rate (TWR), Analysis of variance (ANOVA), Taguchi method, Microstructure
