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Title: Optimization of process parameters of wire EDM for material removal rate using Taguchi technique
Authors: Kumar, Mandeep
Singh, Hari
Keywords: Wire electrical discharge machining;Spark gap voltage;Material removal rate;Wire feed rate;Taguchi technique
Issue Date: Aug-2016
Publisher: NISCAIR-CSIR, India
Abstract: In this paper, the material removal rate (MRR) of Inconel X750 (Nickel based alloy) subjected to wire electrical discharge machining (WEDM) is studied and optimized by using the Taguchi technique. A 0.25 mm diameter plain brass wire is used as the tool electrode for cutting the material. Experiments are designed and conducted using Taguchi’s L-27 orthogonal array. Six input process parameters of WEDM such as spark gap voltage (SV), pulse-on time (TON), pulse-off time (TOFF), wire feed rate (WF), peak current (IP) and wire tension (WT) and three interactions (TON*TOFF, TOFF*SV, TON*SV) are chosen as variables to study the process performance. Three trials are conducted and the average is chosen as response at that particular experimental condition. The analysis of variance (ANOVA) is carried out to determine the level of importance of the machining parameters on the MRR. Confirmation experiments are carried out to check the accuracy of the optimized results. The Investigation indicated that material removal rate increases with increase in pulse-on time and decreases with increase in pulse-off time.
Page(s): 223-230
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.23(4) [August 2016]

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