Experimental Investigation of AA6063 Welded Joints Using FSW

Table 11

Actual values and predicted values of hardness.

Exp. no.	Hardness values
Actual value	Predicted value
1	86	88
2	93	87
3	81	86
4	86	85
5	89	85
6	84	86
7	80	83
8	85	85
9	87	84