Research Article

Mechanical Properties Optimization of Friction Stir Welded Lap Joints in Aluminium Alloy

Table 13

ASTM grains size number versus heat index regression.

rpms/mmGHI

9500.1558.545.710
10500.1848.608.350
11500.2138.6611.664
12500.2418.7215.749
1377.50.2678.7842.841
1377.50.5338.8421.421
18000.258.9054.864
2222.50.2678.9655.762