Numerical analysis of two-way interaction between weld-pool and arc for GTA welding process

J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (01): 171-172.

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Numerical analysis of two-way interaction between weld-pool and arc for GTA welding process

Yongping LEI, Xianghua GU, Yaowu SHI

Welding Research Insttute, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China...

Received:2000-04-25 Revised:1900-01-01 Online:2001-01-28 Published:2009-10-10
Contact: Yongping LEI

Abstract

Abstract: A mathematical model to describe the heat transfer and fluid flow in the mutually coupled weld pool and are by an interactive free surface of the pool for a stationary gas tungsten are welding (GTAW) is developed. The two sets of governing equations and auxiliary formulas, controlling the weld pool and plasma are systems respectively, were solved by a finite difference method. A boundary-fitted coordinate system was adopted because the free surface has a curved and unknown shape during welding. The results of this work provide a fundamental basis for predicting the behavior of an integrated weld pool and are system from first principles.

Key words:

Yongping LEI, Xianghua GU, Yaowu SHI. Numerical analysis of two-way interaction between weld-pool and arc for GTA welding process[J]. J Mater Sci Technol, 2001, 17(01): 171-172.

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Numerical analysis of two-way interaction between weld-pool and arc for GTA welding process

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