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|Title:||Taguchi-Grey computation methodology for optimum multiple performance measures on machining titanium alloy in WEDM process|
|Keywords:||Taguchi-Grey relational approach;Titanium alloy;Machinability;Surface roughness;WEDM|
|Abstract:||Since the wire electrical discharge machining (WEDM) process involves with more than one performance measures, conventional Taguchi design of experiments alone is not helpful to identify the optimal combination of input process parameters. Titanium alloy (Ti-6Al-4V) is being mostly utilized in the many manufacturing fields owing to its prominent characteristics. In the present study, an endeavor has been made to compute the optimum input process parameters such as pulse on time, pulse off time, servo voltage and wire tension and wire electrodes on machining titanium alloy using WEDM process. Material removal rate, surface roughness and kerf width have been taken as the performance measures to access the machinability. L27 orthogonal array has been selected for conducting the machining experiments. From the experimental results, it has been found that pulse off time has most significant nature among process parameters on multiple performances involved in WEDM process owing to its significant nature in deionization of the spark plasma column. The optimal combination of input process parameters of the WEDM process for achieving better machinability has been computed such as pulse on time (130 µs), pulse off time (50 µs), servo voltage (40V), wire tension (5kg), wire electrode type (zinc coated brass wire electrode) among the considered process variables using Taguchi-Grey relational approach.|
|ISSN:||0975-1017 (Online); 0971-4588 (Print)|
|Appears in Collections:||IJEMS Vol.22(2) [April 2015]|
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