A study on the prediction of micro-deformation in laser welding of small structure

소형구조물의 레이저-용접시 미세 변형 예측에 관한 연구

In this research, newly proposed heat source equations were calculated to predict micro distortion of small structure in laser welding and compared with experimental results which were measured using laser speckle metrology. A finite element code, ABAQUS is used for the heat transfer analysis with a three-dimensional plane assumption. The results suggest that weld distortion is varied according to the heat source of the. laser beam.