激光焊接熔池动态行为数值模拟的进展与分析
Research Review and Analysis of Numerical Simulation for Molten Pool Dynamic Behavior in Laser Welding
- 2022年52卷第5期 页码:13-19
DOI: 10.7512/j.issn.1001-2303.2022.05.02
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彭进,龙伟民,张永振.激光焊接熔池动态行为数值模拟的进展与分析[J].电焊机,2022,52(5):13-19.
PENG Jin, LONG Weimin, ZHANG Yongzhen.Research Review and Analysis of Numerical Simulation for Molten Pool Dynamic Behavior in Laser Welding[J].Electric Welding Machine, 2022, 52(5): 13-19.
激光焊接匙孔和熔池行为与焊接缺陷的形成和焊接质量直接相关,研究激光焊接匙孔和熔池行为对理解激光焊接机理和控制焊接质量具有重要意义。国内外学者根据焊接过程中的物理现象和测试数据,提出了相应的数学模型和计算方法,来模拟熔池内部的流动行为、匙孔的演化行为及其内部金属蒸汽的动力学行为,通过激光焊接熔池行为的数值模拟可提前预测并采取相应措施降低焊接缺陷的形成,将有利于提高激光焊接工件的焊缝质量。对国内外激光焊接熔池行为的数值模拟技术,如激光深熔焊、双束激光焊接、真空激光焊接、磁场作用下的激光焊接、液态金属作用下的激光焊接熔池动态行为数值模拟的研究现状进行了分析和概括,以期为激光焊接熔池数值模拟方面的研究提供参考。
The behavior of keyhole and weld pool in laser welding is directly related to the formation of welding defects and welding quality. The study of keyhole and weld pool behavior in laser welding is of great significance to understand the mechanism of laser welding and control the welding quality. According to the physical phenomena and test data in the welding process, scholars at home and abroad put forward the corresponding mathematical models and calculation methods to simulate the flow behavior in the molten pool, the evolution behavior of the keyhole and the dynamic behavior of the internal metal vapor. Through the numerical simulation technology of laser welding molten pool behavior, it was possible to predict in advance and took corresponding measures to reduce the formation of welding defects. This would help to improve the weld quality of laser welding. This paper analyzed and summarized the research status of numerical simulation technology of laser welding pool behavior at home and abroad, such as laser deep penetration welding, double beam laser welding, vacuum laser welding, laser welding under magnetic field and laser welding with liquid metal. In order to provide reference for the research in numerical simulation of laser welding molten pool.
激光焊接熔池数值模拟匙孔流体流动
laser weldingmolten poolnumerical simulationporosityfluid flow
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