Simulation of Metal Transfer in GMAW Based on FLUENT

作     者：Xueping DING Huan LI Lijun YANG Ying GAO 

作者机构：Tianjin Key Laboratory of Advanced Joining Technology Tianjin University Tianjin Key Laboratory of High Speed Cutting and Precision Machining Tianjin University of Technology and Education 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2013年第26卷第3期

页      面：265-270页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：financially supported by the National Natural Science Foundation of China (No. 51175374) the Natural Science Foundation of Tianjin (No. 11JCY-BJC06100) the State Key Lab of Advanced Welding and Joining, Harbin Institute of Technology (No. AWPT-M12-08) 

主　　题：Metal transfer FLUENT Dynamic simulation High-speed photography 

摘      要：A new numerical approach is presented, which is used to simulate the dynamic process of metal transfer. The process of metal transfer in gas metal arc welding is simulated based on FLUENT. A two-dimensional axisymmetric numerical model is developed using volume of fluid method and the distributions of physical quantities including pressure, current density, electric potential in the droplet are investigated. For improving the veracity of the simulated results and decreasing the effect of the uncertain surface tension coefficient on the simulated results, the relationship between the welding current and surface tension coefficient is modified by analysis of regression. Meanwhile for testing the accuracy of simulated results, the welding experiments are performed and the high-speed photography system is used to record the real process of metal transfer. The results show that the simulated results are in reasonably good agreement with the experimental ones.