In this study multi objective optimization is utilized to optimize a turning operation to reveal the appropriate level of process features. The goal of this work is to evaluate the optimal combination of cutting parameters like feed. spindle speed. inclination angle and workpiece material to have a best surface quality Taguchi technique L9 mixed orthogonal array. https://safeersappliancers.shop/product-category/zanussi-zunn18fs1-integrated-frost-free-upright-freezer/