Open Access
Table 4
Coding of factors and levels.
| Codes | Factors | ||
|---|---|---|---|
| Camshaft speed x1/(r · min−1) |
Blade edge angle x2/(°) |
Cutting inclination angle x3/(°) |
|
| –1.682 | 10.7 | 16.6 | 11.6 |
| –1 | 25 | 20 | 15 |
| 0 | 46 | 25 | 20 |
| 1 | 67 | 30 | 25 |
| 1.682 | 81.3 | 33.4 | 28.4 |
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