Table 2.
Levels of parameters in bone-drilling experiments.
| Parameter (units) | Level 1 | Level 2 | Level 3 | Level 4 | Level 5 |
|---|---|---|---|---|---|
| Drill speed (rpm) | 1000 | 1500 | 2000 | 2500 | 3000 |
| Drill roughness (µm) | 1 | 2 | 3 | 4 | 5 |
| Depth of drilling (mm) | 3 | 4 | 5 | 6 | 7 |
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