Open Access
Table 4
Response surface experimental layout and results.
| FE run no. | Spring stiffness (N/mm) | Punch diameter (mm) | Limit height (mm) | Interlock length (mm) |
|---|---|---|---|---|
| 1 | 1500 | 5.5 | 1.0 | 0.070 |
| 2 | 1000 | 6.0 | 0.8 | 0.045 |
| 3 | 1000 | 5.0 | 0.8 | 0.086 |
| 4 | 1000 | 5.5 | 1.0 | 0.124 |
| 5 | 1500 | 5.5 | 0.8 | 0.100 |
| 6 | 500 | 5.5 | 0.8 | 0.071 |
| 7 | 1000 | 5.5 | 1.0 | 0.125 |
| 8 | 1000 | 5.5 | 1.0 | 0.123 |
| 9 | 1500 | 6.0 | 1.0 | 0.110 |
| 10 | 1000 | 6.0 | 1.2 | 0.060 |
| 11 | 1000 | 5.5 | 1.0 | 0.126 |
| 12 | 1500 | 5.0 | 0.8 | 0.062 |
| 13 | 500 | 5.5 | 1.2 | 0.155 |
| 14 | 1000 | 5.0 | 0.8 | 0.062 |
| 15 | 500 | 5.0 | 1.0 | 0.140 |
| 16 | 1000 | 5.5 | 1.0 | 0.125 |
| 17 | 500 | 6.0 | 1.0 | 0.120 |
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