Numerical simulation on interaction between TIG welding arc and weld pool |
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Authors: | Fenggui Lu Xinhua Tang Hailiang Yu Shun Yao |
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Affiliation: | Welding Research Institute, Shanghai Jiao Tong University, Shanghai 200030, People’s Republic of China |
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Abstract: | The interface deformation between welding arc and weld pool is important in dynamic coupling numerical simulation on arc and pool. To reveal the interaction between welding arc and weld pool, unified mathematic model of TIG welding arc and pool was established in this paper. The moving interface was solved by updating the calculation region of arc and weld pool continually. Fluid flow and heat transfer of TIG welding arc and weld pool were analyzed basing on this model. The weld pool shape calculated by dynamic coupling welding arc and pool is more close to the experiment than that of non coupling calculation. |
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Keywords: | Interface deformation Numerical simulation Unified mathematic model Arc and pool |
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