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Table 2
Test parameters of response surface model.
| No. | The spinning temperature x1 (°C) | Friction coefficient x2 | Main spindle speed x3 (r/min) | Maximum stress y1 (MPa) | Maximum thickness increment y2 (mm) |
|---|---|---|---|---|---|
| 1 | 1150 | 0.20 | 250 | 290.6 | 4.6 |
| 2 | 1050 | 0.30 | 250 | 271.6 | 5.1 |
| 3 | 1150 | 0.30 | 200 | 274.2 | 4.2 |
| 4 | 1050 | 0.20 | 150 | 282.8 | 4.5 |
| 5 | 1050 | 0.20 | 200 | 282.8 | 4.5 |
| 6 | 950 | 0.20 | 150 | 317.7 | 5.4 |
| 7 | 1050 | 0.10 | 250 | 304.2 | 4.0 |
| 8 | 950 | 0.20 | 250 | 321.3 | 5.5 |
| 9 | 950 | 0.30 | 200 | 308.7 | 6.0 |
| 10 | 950 | 0.10 | 200 | 333.4 | 5.1 |
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