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8 Keyhole and Weld Pool Dynamics in Laser Welding with Filler Wires
Fig. 8.21 High-speed photography images of the weld pool surface during single-beam laser
welding (Power: 3 kW, welding speed 1.5 m/min)
Fig. 8.22 High-speed photography images of the weld pool surface during laser welding with filler
wires (Power: 2.6 kW, welding speed 2 m/min, wire feed rate 7 m/min)
Although the welding technical parameters in Figs. 8.21 and 8.22 are not consistent, the above test results prove that laser welding with filler wires can effectively
reduce the fluctuation of weld pool and improve the stability of weld pool. The test
results are qualitatively consistent with the simulation results (Sect. 8.3.7) of the
transient keyhole and the moving weld pool in the welding with filler wire process
8 Keyhole and Weld Pool Dynamics in Laser Welding with Filler Wires
Fig. 8.21 High-speed photography images of the weld pool surface during single-beam laser
welding (Power: 3 kW, welding speed 1.5 m/min)
Fig. 8.22 High-speed photography images of the weld pool surface during laser welding with filler
wires (Power: 2.6 kW, welding speed 2 m/min, wire feed rate 7 m/min)
Although the welding technical parameters in Figs. 8.21 and 8.22 are not consistent, the above test results prove that laser welding with filler wires can effectively
reduce the fluctuation of weld pool and improve the stability of weld pool. The test
results are qualitatively consistent with the simulation results (Sect. 8.3.7) of the
transient keyhole and the moving weld pool in the welding with filler wire process