Russian Journal of Non-Ferrous Metals

, Volume 59, Issue 1, pp 82–92 | Cite as

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

  • M. Morakabiyan Esfahani
  • A. Farzadi
  • S. R. Alavi Zaree
Physical Metallurgy and Heat Treatment
  • 3 Downloads

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.

Keywords

experimental and theoretical investigation temperature and velocity fields dimensionless numbers AA1100 aluminum alloy HAZ Width FLOW-3D 

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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • M. Morakabiyan Esfahani
    • 1
  • A. Farzadi
    • 2
  • S. R. Alavi Zaree
    • 1
  1. 1.Department of Materials Science and EngineeringShahid Chamran UniversityAhvazIran
  2. 2.Department of Mining and Metallurgical EngineeringAmirkabir University of TechnologyTehranIran

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