OPTIMIZATION OF PROCESS PARAMETERS FOR MINIMUM SURFACE ROUGHNESS IN TURNING OF EN8

Industries across the world are struggling to overcome the problem of rejection rate. In order to meet the customer’s satisfaction, it is important to maintain the better quality of the product which can only be afforded by reducing the rejection rate. Surface roughness is one the important parameter in reducing the rejection rate. In this study, the Taguchi Method is used in order to find out the optimal cutting parameters to get the better surface roughness of 45C8 steel. Various cutting parameters viz: cutting speed, fed and depth of cut were taken and Taguchi method is used to find out the optimal combination so as to get the better surface roughness. Orthogonal arrays of Taguchi, the signal-to noise ratio (S/N) ratio, are employed to find the optimal levels and to analyze the cutting parameters on surface roughness. Finally confirmation tests with the optimal levels of cutting parameters are carried out in order to demonstrate the effectiveness of Taguchi optimization method.