Research Article
Effect of Equal Channel Angular Pressing on the Surface Roughness of Solid State Recycled Aluminum Alloy 6061 Chips
Table 4
Quadratic models for
, and
.
| Response | | Equation |
| | 1 | 1.334 − 0.00971A − 2.101B − 9.972C + 0.000036A2 + 4.468B2 + 120.55C2 + 4.56BC | 2 | 1.191 − 0.00971A − 2.101B − 9.972C + 0.000036A2 + 4.468B2 + 120.55C2+ 4.56BC | 3 | 1.153 − 0.00971A − 2.101B − 9.972C + 0.000036A2 + 4.468B2 + 120.55C2 + 4.56BC | 4 | 1.130 − 0.00971A − 2.101B − 9.972C + 0.000036A2 + 4.468B2 + 120.55C2 + 4.56BC |
| | 1 | 7.04 − 0.01399A − 27.97B − 51.62C + 36.90B2 + 496.6C2 + 0.0771AB + 0.1211AC | 2 | 5.77 − 0.01399A − 27.97B − 51.62C + 36.90B2 + 496.6C2 + 0.0771AB + 0.1211AC | 3 | 5.57 − 0.01399A − 27.97B − 51.62C + 36.90B2 + 496.6C2 + 0.0771AB + 0.1211AC | 4 | 5.45 − 0.01399A − 27.97B − 51.62C + 36.90B2 + 496.6C2 + 0.0771AB + 0.1211AC |
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