Review on processing stability, weld defects, finite element analysis, and field assisted welding of ultra-high-power laser (≥ 10 kW) welding
Lu Wang, Youmin Rong
Abstract
The ultra-high-power laser welding, with obvious characteristics of fast welding speed, small heat input, small deformation, large aspect ratio, high alignment, and high directivity, has a huge application potential. In this paper, the research findings and progress for ultra-high-power laser welding are critically reviewed in the last ten years. The investigation state of ultra-high-power laser welding is classified and summarised from the point of processing stability, common weld defects, application of numerical simulation, and external field assisted welding. Finally, the potential research problems and challenges based on ultra-high-power laser (≥ 10 kW) welding are discussed. This fundamental work aims to review the research progress in laser welding monitoring and provide a basis for follow-on research.