Jin Qing-Ye, Jung Jongwook, Cheon Jooyong, Ji Changwook, Lee Wookjin
School of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.
Smart Forming Process Group, Korea Institute of Industrial Technology (KITECH), Ulsan 44413, Republic of Korea.
Materials (Basel). 2024 Dec 31;18(1):135. doi: 10.3390/ma18010135.
In this study, the melt pool formation behavior of high-speed laser-arc hybrid welding of aluminum plates was simulated using finite element analysis (FEA). To evaluate the heat input efficiencies of the laser and arc, standalone laser or arc welding experiments were conducted using the same arc or laser processing parameters as those employed in hybrid welding. These experiments were also simulated using FEA to calibrate the laser and arc heat adsorption parameters. The melt pool shapes were measured from cross-sectional optical microscope (OM) images of the specimens and subsequently used to develop a thermal analysis simulation of the laser and arc welding processes. A simulation model for the laser-arc hybrid welding process was developed by combining the heat input models of the laser and arc welding processes. The FEA model successfully predicted the melt pool shapes observed in the experiments. The accuracy of the developed model was evaluated, yielding average errors in the melt pool sizes of the laser, arc, and hybrid welds of 5.43%, 6.89%, and 4.51%, respectively.
在本研究中，采用有限元分析（FEA）模拟了铝板高速激光-电弧复合焊接熔池的形成行为。为评估激光和电弧的热输入效率，使用与复合焊接相同的电弧或激光加工参数进行了单独的激光或电弧焊接实验。还利用有限元分析对这些实验进行模拟，以校准激光和电弧的热吸收参数。从试样的横截面光学显微镜（OM）图像中测量熔池形状，随后用于开展激光和电弧焊接过程的热分析模拟。通过结合激光和电弧焊接过程的热输入模型，建立了激光-电弧复合焊接过程的模拟模型。有限元分析模型成功预测了实验中观察到的熔池形状。对所建立模型的准确性进行了评估，结果表明激光、电弧和复合焊缝熔池尺寸的平均误差分别为5.43%、6.89%和4.51%。
