Open Access
Table 2
Response data for various combinations of drilling parameters.
| Case | Cutting speed (m/min) | Axial feed (mm/rev) | Thrust force (N) | Surface roughness (μm) | Machining temperature (°C) | Entry diameter (mm) | Exit diameter (mm) |
|---|---|---|---|---|---|---|---|
| 1 | 20 | 0.015 | 371.2 | 1.84 | 305.9 | 6.8215 | 6.8208 |
| 2 | 20 | 0.030 | 491.3 | 2.11 | 357.0 | 6.8313 | 6.8256 |
| 3 | 20 | 0.045 | 569.9 | 2.47 | 377.1 | 6.8352 | 6.8305 |
| 4 | 40 | 0.015 | 350.5 | 1.53 | 368.2 | 6.8196 | 6.8184 |
| 5 | 40 | 0.030 | 441.9 | 1.95 | 380.7 | 6.8278 | 6.8234 |
| 6 | 40 | 0.045 | 531.7 | 2.06 | 394.0 | 6.8309 | 6.8277 |
| 7 | 60 | 0.015 | 331.1 | 1.36 | 395.2 | 6.8180 | 6.8172 |
| 8 | 60 | 0.030 | 435.8 | 1.53 | 434.0 | 6.8237 | 6.8203 |
| 9 | 60 | 0.045 | 525.4 | 1.79 | 491.2 | 6.8301 | 6.8232 |
| 10 | 80 | 0.015 | 307.4 | 1.28 | 439.8 | 6.8136 | 6.8163 |
| 11 | 80 | 0.030 | 418.1 | 1.37 | 472.1 | 6.8211 | 6.8189 |
| 12 | 80 | 0.045 | 496.3 | 1.46 | 513.6 | 6.8267 | 6.8206 |
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