研究目的
Investigating the effects of weld scan speed and laser beam power on the weld geometry for bead on plates of ZE41 Mg alloy using a continuous-wave CO2 laser system, and the mechanical and metallurgical characterisation after welding.
研究成果
The study concluded that weld width and crater depth decrease with increasing laser weld speed, and the laser-welded region resulted in significant grain refinement leading to higher hardness. Optimum laser parameters were identified for achieving the desired weld width and minimum crater depth. X-ray radiography analysis showed weld defects like pores and small cracks occurring during welding with higher heat input conditions.
研究不足
The study is limited to the effects of laser power and welding speed on the weld geometry and quality of ZE41 Mg alloy. Future work is required to minimize weld defects formed in ZE41 Mg alloy.
