Open Access
Table 1
Experimental control parameters and estimated machining time.
| Case | Cutting speed (m/min) | Axial feed (mm/rev) | Tangential feed (mm/tooth) | Machining time (s) | ||
|---|---|---|---|---|---|---|
|
|
|
|
||||
| Drilling | Helical milling | Helical milling | Drilling | Helical milling | ||
| 1 | 20 | 0.015 | 0.20 | 0.075 | 87 | 91 |
| 2 | 20 | 0.030 | 0.35 | 0.075 | 51 | 53 |
| 3 | 20 | 0.045 | 0.50 | 0.075 | 39 | 41 |
| 4 | 40 | 0.015 | 0.20 | 0.075 | 51 | 53 |
| 5 | 40 | 0.030 | 0.35 | 0.075 | 33 | 34 |
| 6 | 40 | 0.045 | 0.50 | 0.075 | 27 | 28 |
| 7 | 60 | 0.015 | 0.20 | 0.075 | 39 | 40 |
| 8 | 60 | 0.030 | 0.35 | 0.075 | 27 | 27 |
| 9 | 60 | 0.045 | 0.50 | 0.075 | 23 | 23 |
| 10 | 80 | 0.015 | 0.20 | 0.075 | 22 | 22 |
| 11 | 80 | 0.030 | 0.35 | 0.075 | 19 | 20 |
| 12 | 80 | 0.045 | 0.50 | 0.075 | 15 | 17 |
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