International Journal of Engineering and Technology

Investigation of machining parameters on Electrical Discharge Machining (EDM) is important for manufacturing industries for achieving higher productivity and product quality. so, this work investigated the effect of machining parameters on machining of AISI 4340 steel in spark erosion process on electric discharge machine with electrolytic copper electrode. In response, the input parameters considered for the experimental work is Pulse on time, Peak Current and Pulse off Time. However, the main objective of this work is to investigate the effects of input parameters on material removal rate (MRR) and Surface Roughness. Subsequently the Box behnken design of response surface methodology (RSM) is used to plan the experimental design. In addition, the ANOVA technique is used for identifying the parameter influences and interaction effect of process parameters on MRR and surface roughness. Finally, the results show that the MRR and surface roughness are mainly affected by pulse on time, peak current and pulse off time. Based on the statistical investigation the regression models were developed and the developed regression models are compared with experimental values.