Research Article
Bi-objective Optimization of Process Parameters in Electric Discharge Machining of SS630 Using Grey Relation Analysis
Table 5
Obtained experimental values of MRR, and SR for the input process variables.
| Experiment no. | (A) | (μs) | (MPa) | (μs) | E-MRR (mm3/min) | SR (μm) |
| 1 | 6 | 15 | 2 | 20 | 1.372 | 3.29 | 2 | 10 | 15 | 4 | 50 | 5.015 | 3.92 | 3 | 14 | 15 | 6 | 70 | 2.412 | 4.12 | 4 | 18 | 15 | 8 | 90 | 3.421 | 4.45 | 5 | 14 | 25 | 4 | 20 | 5.522 | 4.56 | 6 | 18 | 25 | 2 | 50 | 6.101 | 5.12 | 7 | 6 | 25 | 8 | 70 | 2.585 | 3.12 | 8 | 10 | 25 | 6 | 90 | 3.921 | 4.21 | 9 | 18 | 35 | 6 | 20 | 3.812 | 5.31 | 10 | 14 | 35 | 8 | 50 | 4.912 | 4.92 | 11 | 10 | 35 | 2 | 70 | 8.156 | 4.72 | 12 | 6 | 35 | 4 | 90 | 9.121 | 3.56 | 13 | 10 | 45 | 8 | 20 | 4.125 | 4.31 | 14 | 6 | 45 | 6 | 50 | 3.912 | 3.84 | 15 | 18 | 45 | 4 | 70 | 10.121 | 5.54 | 16 | 14 | 45 | 2 | 90 | 9.312 | 5.62 |
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