Research Article
Optimization of Deformation Behaviors during Continuous Forming Extrusion of C18150 Copper Alloy through Response Surface Methodology
Table 7
ANOVA to total load to extrude C18150 alloy.
| | Source | DoF | Sequential sum of square | Adjusted sum of square | Adjusted mean of square | F-value | value |
| | Regression | 14 | 138933 | 138933 | 9923.8 | 7404.25 | 0.000 | | Linear | 4 | 47200 | 61228 | 15307.1 | 11420.83 | 0.000 | | x1 | 1 | 9577 | 876 | 876.1 | 653.66 | 0.000 | | x2 | 1 | 56 | 5861 | 5860.9 | 4372.91 | 0.000 | | x3 | 1 | 936 | 51569 | 51569.1 | 38476.41 | 0.000 | | x4 | 1 | 36631 | 1 | 0.9 | 0.69 | 0.422 | | Square | 4 | 9498 | 9498 | 2374.5 | 1771.68 | 0.000 | | 1 | 5900 | 7301 | 7301.3 | 5447.63 | 0.000 | | 1 | 1076 | 1657 | 1656.7 | 1236.12 | 0.000 | | 1 | 388 | 10 | 10.1 | 7.52 | 0.018 | | 1 | 2133 | 2133 | 2133.3 | 1591.71 | 0.000 | | Interaction | 6 | 82234 | 82234 | 13705.7 | 10226.02 | 0.000 | | 1 | 132 | 132 | 132.3 | 98.67 | 0.000 | | 1 | 14520 | 14520 | 14520.3 | 10833.76 | 0.000 | | 1 | 2550 | 2550 | 2550.3 | 1902.78 | 0.000 | | 1 | 5625 | 5625 | 5625.0 | 4196.89 | 0.000 | | 1 | 8556 | 8556 | 8556.3 | 6383.94 | 0.000 | | 1 | 50850 | 50850 | 50850.2 | 37940.08 | 0.000 | | Residual error | 12 | 16 | 16 | 1.3 | | | | Lack-of-fit | 10 | 16 | 16 | 1.6 | | | | Pure error | 2 | 0 | 0 | 0.0 | | | | Total | 26 | 138949 | | | | |
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dof: degree of freedom.
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