Application of adjustable ring mode laser in remote laser welding of additive manufactured AlSi10Mg alloy

Additive manufacturing (AM) is an innovative technology that offers the ability to build parts with both geometric and material complexities. However, limitations, including low volume capability production rate, yield its rapid application in high production. This paper presents potential of remote laser welding (RLW) as a post-AM joining approach scale up AM components. The AlSi10Mg alloy was fabricated by direct metal sintering subsequently joined RLW without filler wire or shielding gas. A novel adjustable ring mode (ARM) beam employed during process where designed stabilize keyhole providing preheating postheating while core guarantees sufficient weld penetration. impact ARM on porosity evaluated fillet lap bead-on-plate configurations, accompanied variation core/ring power ratios. Crack-free welds promising appearance were obtained among all trials, indicating ARM-RLW can be for robust connection alloys. Optimizing ratio substantially reduce area from 24.3% 13.5% configuration 24.2% 14.4% configuration. Analysis variance tests statistically confirmed significant ratio. Future work has been suggested maturation industrial application.