Research Article
Mechanical Properties Optimization of Friction Stir Welded Lap Joints in Aluminium Alloy
Table 13
ASTM grains size number versus heat index regression.
| rpm | s/mm | G | HI |
| 950 | 0.155 | 8.54 | 5.710 | 1050 | 0.184 | 8.60 | 8.350 | 1150 | 0.213 | 8.66 | 11.664 | 1250 | 0.241 | 8.72 | 15.749 | 1377.5 | 0.267 | 8.78 | 42.841 | 1377.5 | 0.533 | 8.84 | 21.421 | 1800 | 0.25 | 8.90 | 54.864 | 2222.5 | 0.267 | 8.96 | 55.762 |
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