Parametric Optimization on EDM by Employing Taguchi Design of Experiment and ANOVA Method

The present work is carried out in order to maximize and optimization of the factors MRR. The factor Material Removal Rate (MRR) is targeted to maximize and minimization the Surface Roughness (SR) value on die-sinking machine by using an Electric Discharge Machine. The process parameters considered in their experimental work include discharge current (I), source voltage (V), pulse-on time (Ton) and pulse-off time (Toff). We have applied the Taguchi's method Design of experiments DOE and after that Taguchi based ANOVA analysis to optimize the above stated two process performance factors i.e. MRR and SR. The main results from the present analytical work are summarized as the most important parameter with the aspect of MRR is discharge current (I), as the discharge current (I) shows the contribution ratio of the order of 33.33%. The performance of SR is most affected by the factor B. The contribution ratios of discharge current (I) is Re 33.16% and after that factor C, pulse-on time (Ton) have 30.62%.