Research Article
PTFE in Wet and Dry Drilling: Two-Tier Modeling and Optimization through ANFIS
Table 2
Experimental design summary.
| | Factor: Name | Mini | Maxi | −1 actual | +1 actual | Mean | Std. Dev. | Model |
| | A: N (rpm) | 800 | 2200 | 800 | 2200 | 1500 | 582.44 | — | | B: f (mm/min) | 0.05 | 0.15 | 0.05 | 0.15 | 0.1 | 0.0416 | — | | C: (deg) | 100 | 135 | 100 | 135 | 117.67 | 14.56 | — | | Responses | | (μm) | 0.806 | 1.968 | — | — | 1.21 | 0.3347 | Quadratic | | Updated Ra-NC (μm) | 0.8201 | 1.8699 | — | — | 1.22 | 0.3288 | Quadratic | | (μm) | 0.78 | 1.91 | — | — | 1.16 | 0.3261 | Quadratic | | Updated Ra-WC (μm) | 0.77988 | 1.8 | — | — | 1.17 | 0.3191 | Quadratic |
|
|
