Research Article
Study of the Effect of Process Parameters on Surface Profile Accuracy in Single-Point Incremental Sheet Forming of AA1050-H14 Aluminum Alloy
Table 6
ANOVA results for surface roughness (Ra).
| | Source | DF | Adj SS | Adj MS | F value | value |
| | Model | 2 | 24.77 | 12.38 | 270.68 | 0.00 | | Linear | 2.00 | 24.77 | 12.38 | 270.68 | 0.00 | | d | 1.00 | 24.19 | 24.19 | 528.69 | 0.01 | | t | 1.00 | 0.58 | 0.58 | 12.67 | 0.01 | | Lack-of-Fit | 13.00 | 0.90 | 0.07 | 1.90 | 0.07 | | Pure error | 32.00 | 1.16 | 0.04 | | | | Total | 47.00 | 26.83 | | | | | Model summary | R-sq 92.33% | R-sq (adj) 91.98 | R-sq (pred) 91.27% |
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