Please use this identifier to cite or link to this item:
http://nopr.niscpr.res.in/handle/123456789/66747| metadata.dc.identifier.doi: | https://doi.org/10.56042/ijems.v32i04.17709 |
| Title: | Electrical discharge machining of EN-40B high carbon alloy steel: Investigation of recast layer and multi-performance optimization |
| Authors: | Padhi, Pratap Chandra Reddy, Nalamalapu Ravindra Mahapatra, Trupti Ranjan Mishra, Punyapriya Parimanik, Somya Ranjan |
| Keywords: | Desirability function analysis;Electrical discharge machining;Recast layer;Simple optimization algorithm;Taguchi’s methodology |
| Issue Date: | Aug-2025 |
| Publisher: | NIScPR-CSIR, India |
| Abstract: | This study has investigated the machinability of EN-40 high-carbon alloy steel in electrical discharge machining (EDM) by analyzing the recast layer morphology. Taguchi’s L16 design and the desirability function approach (DFA) with a simple optimization algorithm (SOPTA) have been used to optimize pulse on time (Ton), pulse off time (Toff), low voltage current (LV), and high voltage current (HV). Performance metrics have included rate of material removal (RMR), tool wear rate (TWR), and surface roughness (Ra). The SOPTA algorithm using MATLAB 22a has determined the optimal settings (LV = 25A, HV = 2A, Ton = 40 μs, Toff = 25 μs) with a composite desirability of 0.5784. A confirmatory test has verified the optimal setting and compared it with the initial setting. The experimental results have shown that EDM performance has been significantly enhanced by the proposed method, with RMR, TWR, and Ra having improved by 66.32%, 70.36%, and 55.64%, respectively |
| Page(s): | 493-501 |
| ISSN: | ISSN: 0975-1017 (Online); 0971-4588 (Print) |
| Appears in Collections: | IJEMS Vol.32(04) August |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJEMS 32(2) 493-501.pdf | 2.95 MB | Adobe PDF | View/Open |
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