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

Table 2

Influence of the distance between two laser beams on welding process (welding parameters: P_CO2=7.8 KW, υ = 4 m/min).

The distance between two laser beams	Welding process
0~1.0 mm	Unstable
1.0~1.5 mm	Stable
1.5~3.0 mm	Unstable