Peng Jin, Wang Xingxing, Li Gang, Cui Datian, Wang Xiaohu. Effect of Laser Welding with Filler Wire on Molten Pool Dynamic Behavior and Weld Formation[J]. Chinese Journal of Lasers, 2017, 44(11): 1102004
- Chinese Journal of Lasers
- Vol. 44, Issue 11, 1102004 (2017)
Fig. 1. Schematic of welding experiment
Fig. 2. Images of tracer particle trajectories on molten pool surface. (a) Autogenous laser welding; (b) laser welding with filler wire
Fig. 3. Schematics of tracer particle trajectories on molten pool surface. (a) Autogenous laser welding; (b) laser welding with filler wire
Fig. 4. Molten pool surface fluctuation in autogenous laser welding. (a) High-speed camera image; (b) schematic
Fig. 5. Molten pool surface fluctuation in laser welding with filler wire. (a) High-speed camera image; (b) schematic
Fig. 6. Weld surface appearances. (a) Autogenous laser welding; (b) laser welding with filler wire
Fig. 7. Schematics of welding wire transition modes in laser welding with filler wire. (a) Liquid bridge transition; (b) droplet transition
Fig. 8. Droplet transition process in laser welding with filler wire. (a) High-speed camera image; (b) schematic
Fig. 9. Weld surface appearance for droplet transition in laser welding with filler wire
Fig. 10. Molten pool surface fluctuation states when wire feeding angle is 30°
Fig. 11. Molten pool surface fluctuation states when wire feeding angle is 60°
Fig. 12. Weld surface appearances under different wire feeding angles. (a) 30°; (b) 60°
Fig. 13. Longitudinal sections of welds under different wire feeding angles. (a) 15°; (b) 30°; (c) 60°
Fig. 14. Schematic of filler wire impact force on molten pool
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Table 1. Chemical compositions of 6156 aluminum alloy (mass fraction, %)
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Table 2. Process parameters of welding experiment
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