Influence of Welding Parameters on Weld Formation and Microstructure of Dual-Laser Beams Welded T-Joint of Aluminum Alloy

Table 1

Nominal chemical composition of materials used (wt.%).

	Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Al
6061	0.4–0.8	0.7	0.15–0.4	0.15	0.8–1.2	0.10	0.25	0.15	Balance
4043	4.5–6.0	<0.8	0.30	0.05	0.05	—	0.10	<0.02	Balance