Simulation of Metal Transfer in GMAW Based on FLUENT

doi:10.1007/s40195-012-0175-4

Acta Metallurgica Sinica (English Letters) ›› 2013, Vol. 26 ›› Issue (3): 265-270.DOI: 10.1007/s40195-012-0175-4

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Simulation of Metal Transfer in GMAW Based on FLUENT

Xueping DING¹⁾, Huan LI¹⁾, Lijun YANG¹⁾,Ying GAO²⁾

1) Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin 300072,China
2) Tianjin Key Laboratory of High Speed Cutting and Precision Machining, Tianjin University of Technology and Education, Tianjin 300222, China

Received:2012-10-16 Revised:2013-01-09 Online:2013-06-25 Published:2013-05-06
Contact: Lijun YANG
Supported by:
National Natural Science Foundation of China (No. 51175374), the Natural Science Foundation of Tianjin (No. 11JCYBJC06100) and the State Key Lab of Advanced Welding and Joining, Harbin Institute of Technology (No.AWPT-M12-08).

Abstract

Abstract:

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.

Key words: Metal transfer, FLUENT, Dynamic simulation, High-speed photography

Xueping DING, Huan LI, Lijun YANG,Ying GAO. Simulation of Metal Transfer in GMAW Based on FLUENT[J]. Acta Metallurgica Sinica (English Letters), 2013, 26(3): 265-270.

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Simulation of Metal Transfer in GMAW Based on FLUENT

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