The Effect of Droplet Impingement on Pressure and Heat Flux Distributions on Molten Pool in GMAW-Based Rapid Forming

Feng Liang Yin; Sheng Zhu; Jian Liu; Xiao Ming Wang; Lei Guo

doi:10.4028/www.scientific.net/AMM.494-495.391

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 494-495The Effect of Droplet Impingement on Pressure and...

The Effect of Droplet Impingement on Pressure and Heat Flux Distributions on Molten Pool in GMAW-Based Rapid Forming

Abstract:

A low dimensional precision is one of drawback for the GMAW-based rapid forming technique, which is related to pressure and heat flux on molten pool. To study pressure and heat flux on molten pool, the effect of droplet impinging process must been considered. A three-dimensional numerical model was built to analysis pressure and heat flux distribution on molten pool. Solving the model, it was found that pressure on the cathode by the arc decreases dramatically when the droplet is coming. As to heat flux, the appearance of droplet cuts down it within about 1.5 mm away from arc axial. Out of 1.5 mm away from arc axial, droplets effect on heat flux is not obvious.

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Periodical:

Applied Mechanics and Materials (Volumes 494-495)

Pages:

391-394

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.494-495.391

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Online since:

February 2014

Authors:

Feng Liang Yin*, Sheng Zhu, Jian Liu, Xiao Ming Wang, Lei Guo

Keywords:

Droplet, Molten Pool, Rapid Forming

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* - Corresponding Author

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