7.3 Coupling Behavior of Keyhole and Weld Pool in Dual-Beam Welding
191
Fig. 7.5 Shape of the longitudinal section of keyholes in tandem dual beam laser welding with
different beam spacing at 30.71 ms
Time/ms
Time/ms
Keyhole depth/mm)
Keyhole depth/mm)
Time/ms
Time/ms
Keyhole depth/mm)
Keyhole depth/mm)
Fig. 7.6 Evolution curves of keyhole depth with different dual beam laser welding speeds