Research Article
Mechanical and Formability Evaluation of ST14 Alloys Welded by Friction Stir Welding
Table 2
Optimal values predicted by the response level methodology model and alternative parameters.
| ā | ā | Predicted | Alternative and available |
| Criteria | Rotation speed (rpm) | 39/866 | 800 | Pin diameter (mm) | 92/3 | 9/3 | Linear velocity (mm/min) | 74/78 | 80 | Holder diameter (mm) | 26/14 | 2/14 |
| Results | Tensile strength (MPa) | 369/308 | 305 |
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