전역 최적화 알고리즘을 이용한 파이버 레이저 용접 열원 모델 구현에 관한 연구Part III : 용접 파워에 따른 열원파라미터의 영향도 분석 A Study for Heat Source Model for Fiber Laser Welding with Global Optimization AlgorithmPart III. Analysis of the Parameters with Welding Power
pp.492-498
The multi-layered heat source model is a model that can cover most of existing studies and can be defined with a simple formula. Based on the methodology performed in previous studies, the welding heat source was found through experiments and FEM under the welding power conditions of three cases and the parameters of the welding heat source were analyzed according to the welding power. In this study, parameters of fiber laser welding heat source according to welding power were searched through optimization algorithm and finite element analysis, and the correlation was analyzed. It was confirmed that the concentration of the welding heat source in the 1st layer was high regardless of the welding power, and it was confirmed that the concentration of the welding heat source in the 5th layer (last layer) increased as the welding power increased. This reflects the shape of the weld bead that appears during actual fiber laser welding, and it was confirmed that this study represents the actual phenomenon.