Song Gang, Yu Peini, Li Taotao, Liu Liming. Simulation and Analysis of Magnesium Alloy/Steel by Laser-Induced Arc Hybrid Welding[J]. Chinese Journal of Lasers, 2020, 47(6): 602001
- Chinese Journal of Lasers
- Vol. 47, Issue 6, 602001 (2020)
Fig. 1. Schematic of welding process. (a) Structure of the heat source; (b) heat source offset
Fig. 2. Schematic of combined heat source
Fig. 3. Schematic of geometry model and mesh generation
Fig. 4. Weld surface morphology. (a) The first welding; (b) the second welding
Fig. 5. SEM analysis results of welded joint. (a) Macroscopic appearance of cross section of welded joint; (b) area A in Fig.5 (a); (c) area B in Fig.5 (b)
Fig. 6. Comparison of weld morphology. (a) Simulated weld; (b) experimental weld
Fig. 7. Comparison of thermal cycle curves
Fig. 8. Temperature distribution on weldment
Fig. 9. Thermal cycle curves. (a) Thermal cycle curves at position C in Fig.8 ; (b) temperature distribution along path AB in Fig.8
Fig. 10. Schematic of magnesium alloy/steel joint solidification
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Table 1. Laser-induced tungsten inert gas welding parameters
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Table 2. Thermal and physical parameters of Fe67Ni33
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Table 3. Total heat transfer coefficient
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Table 4. Error analysis of molten pool size
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