Research Article
Calculation and Estimation of Surface Roughness and Energy Consumption in Milling of 6061 Alloy
Table 6
S/N response table for surface roughness and energy consumption.
| | Level | V (m/min) | f (mm/rev) | DOC (mm) | Cm |
| Ra (μm) | 1 | −10.172 | −5.618 | −6.164 | −6.140 | 2 | −9.536 | −7.609 | −7.507 | −9.489 | 3 | −5.242 | −8.028 | −8.059 | | 4 | −6.307 | −10.002 | −9.527 | | Delta | 4.929 | 4.384 | 3.364 | | Rank | 1 | 2 | 3 | 4 |
| Rz (μm) | 1 | −25.51 | −22.32 | −21.69 | −21.26 | 2 | −25.73 | −22.25 | −23.48 | −25.13 | 3 | −19.73 | −23.77 | −22.72 | | 4 | −21.81 | −24.43 | −24.88 | | Delta | 6.00 | 2.18 | 3.19 | 3.87 | Rank | 1 | 4 | 3 | 2 |
| Pcutting S (W) | 1 | −27.71 | −50.30 | −44.62 | −52.09 | 2 | −55.44 | −50.11 | −51.44 | −52.75 | 3 | −62.15 | −56.35 | −58.08 | | 4 | −64.37 | −52.91 | −55.54 | | Delta | 36.66 | 6.25 | 13.46 | 0.66 | Rank | 1 | 3 | 2 | 4 |
| Pcutting X (W) | 1 | −43.21 | −37.47 | −34.84 | −39.22 | 2 | −43.46 | −38.14 | −40.11 | −42.88 | 3 | −37.70 | −44.04 | −44.30 | | 4 | −39.84 | −44.55 | −44.94 | | Delta | 5.76 | 7.08 | 10.10 | 3.66 | Rank | 3 | 2 | 1 | 4 |
| SEC S (J) | 1 | −36.53 | −32.51 | −33.34 | −28.32 | 2 | −27.21 | −28.95 | −28.85 | −27.80 | 3 | −24.33 | −26.36 | −26.09 | | 4 | −24.18 | −24.43 | −23.96 | | Delta | 12.35 | 8.09 | 9.38 | 0.52 | Rank | 1 | 3 | 2 | 4 |
| SEC X (J) | 1 | −18.376 | −14.417 | −16.803 | −11.388 | 2 | −14.094 | −11.978 | −12.157 | −12.571 | 3 | −8.837 | −11.642 | −10.560 | | 4 | −6.612 | −9.881 | −8.398 | | Delta | 11.764 | 4.536 | 8.404 | 1.184 | Rank | 1 | 3 | 2 | 4 |
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