Effect of Modified Pin Profile and Process Parameters on the Friction Stir Welding of Aluminum Alloy 6061-T6

Table 1

Chemical composition in weight of aluminum alloy AISI 6061-T6.

Al	95.8 to 98.6
Cr	0.04 to 0.35
Cu	0.15 to 0.4
Fe	Max. 0.7
Mg	0.8 to 1.2
Mn	Max. 0.15
Si	0.4 to 0.8
Ti	Max. 0.15
Zn	Max. 0.25
Other	Each max. 0.05
	Total max. 0.15