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Effect of Welding Speed on Gas Metal Arc Weld Pool in Commercially Pure Aluminum: Theoretically and Experimentally

  • Physical Metallurgy and Heat Treatment
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Russian Journal of Non-Ferrous Metals Aims and scope Submit manuscript

Abstract

Temperature and velocity fields, and weld pool geometry during gas metal arc welding (GMAW) of commercially pure aluminum were predicted by solving equations of conservation of mass, energy and momentum in a three-dimensional transient model. Influence of welding speed was studied. In order to validate the model, welding experiments were conducted under the similar conditions. The calculated geometry of the weld pool were in good agreement with the corresponding experimental results. It was found that an increase in the welding speed results in a decrease peak temperature and maximum velocity in the weld pool, weld pool dimensions and width of the heat-affected zone (HAZ). Dimensionless analyses were employed to understand the importance of heat transfer by convection and the roles of various driving forces in the weld pool. According to dimensionless analyses droplet driving force strongly affected fluid flow in the weld pool.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Shahid Chamran University, Ahvaz, Iran

    M. Morakabiyan Esfahani & S. R. Alavi Zaree

  2. Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, 15916-34311, Iran

    A. Farzadi

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  1. M. Morakabiyan Esfahani
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Correspondence to A. Farzadi.

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Morakabiyan Esfahani, M., Farzadi, A. & Alavi Zaree, S.R. Effect of Welding Speed on Gas Metal Arc Weld Pool in Commercially Pure Aluminum: Theoretically and Experimentally. Russ. J. Non-ferrous Metals 59, 82–92 (2018). https://doi.org/10.3103/S1067821218010121

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  • DOI: https://doi.org/10.3103/S1067821218010121

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