Machining Performance Analysis in Electrical Discharge Machining of Alloy Tool Steel

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Authors Abstract
Content
This article primarily focuses on studying and analyzing the effect of machining parameters, viz., pulse on time (TON), pulse off time (TOFF), and pulse current (Ip) on machining performance in terms of surface roughness (Ra) and material removal rate (MRR) during electrical discharge machining (EDM) of alloy tool steel (SKD11 steel). The traditional trial-and-error methods used to derive empirical relationship and optimize the process is time consuming and results in reduced productivity, high rejection, and cost. The response surface methodology (RSM) approach of design of experiment technique was applied for designing the experiments. The influences of EDM parameters on Ra and MRR were investigated using different graphs. The mathematical model equations for Ra and MRR were generated. The optimum parametric combinations for smaller Ra (highest surface finish) and highest MRR were found, and the optimized values of Ra and MRR were obtained. The predicted values showed close agreement with the experimental ones. The surface morphology of the machined surface was examined using a scanning electron microscope (SEM).
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DOI
https://doi.org/10.4271/05-16-01-0008
Pages
13
Citation
Singh, P., Singh, A., and Singh, L., "Machining Performance Analysis in Electrical Discharge Machining of Alloy Tool Steel," SAE Int. J. Mater. Manf. 16(1):83-95, 2023, https://doi.org/10.4271/05-16-01-0008.
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Publisher
Published
Nov 30, 2022
Product Code
05-16-01-0008
Content Type
Journal Article
Language
English