Optimization of wire electrical discharge machining processing conditions using Taguchi method

Abstract

Surface quality is an imperative technological measure, used specified customer requirements for machined surfaces. Surface roughness is significant influenced by several processing conditions and it is difficult to quantify adequately. Wire electrical discharge machining (WEDM) is an innovative machining procedure, useful to generate elaborate characteristics on jobs. In WEDM, many operating variables have large impact on surface quality of parts. Systematic analysis and optimization technique are required to enable industrialists to maximize their gains from utilizing WEDM efficiently. Present work, research investigation is carried out to determine the optimum processing setting to achieve the optimal surface quality of WEDM'ed H13 steel job. Experimental runs have been made as per L16 orthogonal array of Taguchi methodology (TM). Analysis of variance has been employed to detect the impact of operating conditions on surface quality. Applications of TM have been utilized to examine the impact of operating variables on surface quality of steel part. Using MINITAB 19 software, graphical main and interaction effect graphs have been made to explore the influences of processing variables on surface finish. The optimum machining condition has been obtained from Taguchi method to minimalize surface quality. Validatory test have been executed to confirm the minimized surface quality value at predicted test condition.