Process Parametric Optimization Of Wire EDM Using Taguchi Method For Inconel 718
Author(s):
Aqib Abdullah, Parul Sahu, Ajay Singh Rana
Keywords:
Wire electrical discharge machine (WEDM), MRR, Kerf (cutting width), Parameter optimization, Taguchi method.
Abstract
The necessity of selecting the best values for various operating factors is necessary for improving the efficiency of many non-conventional machining processes. The Wire Electrical Discharge Machining method is based on widely established non- physical contact metal erosion rate approach and is based on the traditional EDM sparking phenomena. In conductive material machining, wire electrical discharge machining (WEDM) is commonly employed. The motive of this research is to find the optimized effect of these setup factors: Pulse-on time (Ton), Pulse-off time (Toff) and Peak Current (I), which are great influenced factor among each other. These factors are controlled by the specifications while machining like Kerf (KW) and Material removal rate (MRR) and also to evaluate them. The studies followed the Taguchi's L9 orthogonal array protocol. During the creation of micro cuts in Inconel 718, the material removal rate (MRR) and cutting width (Kerf) were used as response measurements. In MRR, the pulse on time contributes the highest proportion, 67.39% followed by current and pulse off time and in Kerf, the highest percentage contribution in current is 38 % followed by pulse off time and pulse on time at 95 % confidence level. In addition, pulse on time was found to be the next major parameter for MRR, whereas peak current was shown to be the next key parameter for Kerf.
Article Details
Unique Paper ID: 155348

Publication Volume & Issue: Volume 9, Issue 1

Page(s): 619 - 624
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