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

Figure 5

Macrographs of the weld seams obtained using different laser power of CO₂ laser (fixed welding parameter: υ = 4 m/min). (a) 6.8 KW, (b) 7.2 KW, (c) 7.5 KW, (d) 7.8 KW, and (e) 8.0 KW.

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