Weldability Investigation and Optimization of Process Variables for TIG-Welded Aluminium Alloy (AA 8006)

Table 8

Response table for tensile strength means (larger is better).

Level	Peak current (Amps)	Base current (Amps)	Welding speed (mm/min)
1	81.94	97.95	95.02
2	82.50	82.95	82.22
3	83.65	67.20	70.85
Delta	1.71	30.75	24.16
Rank	3	1	2