Fig. 1. Schematic diagram of electromagnetic auxiliary welding device

Fig. 2. Schematic diagram of the molten pool feature shooting system

Fig. 3. Comparison test of electromagnetic assisted laser welding process and weld morphology

Fig. 4. Effect of Ampere force in constant magnetic field on the suppression of dripping defects in the root molten pool

Fig. 5. Effect of Ampere force at constant current on the suppression of dripping defects in the root molten pool

Fig. 6. Influence of Ampere force on the depth of the weld pool of 30-mm thick plates and the quality of weld formation

Fig. 7. Flow behavior of the molten pool at the root of electromagnetic-assisted laser thick plate welding. (a) t=0 ms; (b) t=300 ms; (c) t=600 ms; (d) t=900 ms; (e) t=1200 ms; (f) t=1500 ms