Table 3.
Process parameters and their levels.
| Run | Pulse on Time (µs) | Pulse off Time (µs) | Current (Ampere) | MRR (mm3/s) | SR (µm) | Microhardness (HV) |
|---|---|---|---|---|---|---|
| 1 | 35 | 10 | 3 | 1.230948122 | 5.637 | 330.2 |
| 2 | 55 | 10 | 3 | 1.065245598 | 5.986 | 342.3 |
| 3 | 35 | 20 | 3 | 0.714888337 | 6.453 | 275.2 |
| 4 | 55 | 20 | 3 | 0.756738988 | 6.82 | 342.8 |
| 5 | 35 | 15 | 2 | 0.675983558 | 5.322 | 308.6 |
| 6 | 55 | 15 | 2 | 0.666859456 | 6.58 | 301 |
| 7 | 35 | 15 | 4 | 1.066357739 | 6.595 | 346.5 |
| 8 | 55 | 15 | 4 | 1.103461538 | 5.577 | 351.3 |
| 9 | 45 | 10 | 2 | 0.845274725 | 4.944 | 341.7 |
| 10 | 45 | 20 | 2 | 0.541463415 | 5.925 | 354.2 |
| 11 | 45 | 10 | 4 | 1.23034188 | 5.638 | 383.9 |
| 12 | 45 | 20 | 4 | 0.874333587 | 5.762 | 374.6 |
| 13 | 45 | 15 | 3 | 0.92275641 | 6.053 | 326.3 |
| 14 | 45 | 15 | 3 | 0.925 | 5.484 | 309.5 |
| 15 | 45 | 15 | 3 | 0.921634615 | 6.098 | 316.3 |