Real-Time Defects Analyses Using High-Speed Imaging during Aluminum Magnesium Alloy Laser Welding

In this study a continuous wave Ytterbium-doped Yttrium Aluminum Garnet (Yb: YAG) disk laser has been used for welding of AlMg3 casted alloy. A high-speed imaging camera employed to record hot vapor plume features during the process. The purpose was identify mechanism pores detection in real-time based on correlations between metallographic analyses and area/intensity various locations samples. formation especially position these had be kept under control order weld thick Based characterization vapor, it found that increase area exceeded threshold value (18.5 ± 1 mm2) sign within seam. For identification pores’ welding, monitored element intensity. core spots having grayscale level reaching 255 associated with local pore. These findings have devised correlation placement welds cross-section microscopy images those respective positions.