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In the era of mass manufacturing, MRR (material removal rate) is of primary concern even in manufacturing using contemporary CNC (computer numerical controlled) machines. In this paper Taguchi method has been employed with L25 (5^3) Orthogonal Array for three parameters namely Speed, Feed and Depth of cut. For each of these parameters five different levels have been identified and used to perform the turning parameters for maximization of material removal rate on an EMCO Concept Turn 105 CNC lathe. The material selected for machining was SAE 1020 with carbide cutting tool. The MRR is observed as the objective to develop the combination of optimum cutting parameters. This paper proposes an optimization approach using orthogonal array for the maximized MRR and the result from this study confirms the same. This study also produced a predictive equation for determining MRR with a given set of parameters in CNC turning. Thus, with the proposed optimal parameters it is possible to increase the efficiency of machining process and decrease production cost in an automated manufacturing environment

Optimization of Material Removal Rate During Turning of SAE 1020 Material in CNC Lathe using Taguchi Technique