OPTIMIZATION OF CONTROL PARAMETERS FOR SURFACE ROUGHNESS OF DIE SINK EDM USING TAGUCHI METHOD
Keywords:
EDM, Optimization, Taguchi Methodology, Surface RoughnessAbstract
Electrical Discharge Machining (EDM) is a well-established machining option in many industries. Researcher have been undertaken to explore a number of ways to improve the efficiency including some unique experimental concepts. The operating performance measures of side flushing type of electrical discharge machining process on AISI D2 Cold Work Tool Steel using copper electrode are being optimized according to one of its effective machining parameter i.e. Surface roughness (SR). An L9 orthogonal array of Taguchi methodology has been used to recognize the effect of process input factors (viz. current, pulse on time and flushing pressure) on surface roughness. Hence, the quality characteristic for SR is set to lower-the-better to attain the optimum dimensional precision. Using Taguchi’s parameter design, significant machining parameters affecting the performance measures are identified as discharge current, pulse on time and flushing pressure. The results are further verified by conducting confirmation experiments.
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