Abstract
Multi-Criterion Decision Making (MCDM) strategies have gotten much consideration from scientists and professionals in assessing, evaluating and positioning choices over assorted manufacturing industry. Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) continues on working attractively crosswise over various application territories. This paper proposes the TOPSIS-based Taguchi enhancement way to deal with decide the ideal WEDM process parameter for machining of magnesium AZ91 alloy by zinc coated wire electrode. This experiment was outlined with L27 orthogonal cluster. The test ponders were directed under shifting Pulse on time, Pulse off time, current, gap voltage, speed and tension of wire. The impact of the machining variables over kerf width (KW) and cutting speed (CS) is dictated by utilizing examination of fluctuation. The parameters corresponding to experiment run number 2 are Pulse on time 106 units (Level 1), Pulse off time 60 units (Level 3), peak current 70 units (Level 1), gap voltage 40 units (Level 3), wire feed 4 units (Level 1) & wire tension 4 units (Level 1) are the best combination to achieve better cutting speed& kerf width
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