研究目的

To examine the droplet transition in the welding process and assess the effect of the vertical distance between the laser–wire intersection and workpiece (H) on droplet transition.

研究成果

The droplet transition model changed from spreading transition to liquid bridge transition and to globular transition with increasing H value. The droplet transition and welding process were most stable under liquid bridge transition when H=1 mm. The droplet was transferred to the molten pool in the state of balance during liquid bridge transition, while it entered the molten pool under non-equilibrium state during globular transition.

研究不足

The study is limited to the examination of droplet transition models in laser welding with filler wire under specific conditions and materials. Potential areas for optimization include the exploration of other welding parameters and materials.