THE IMPACT OF SELECTED PROCESSES AND TECHNOLOGICAL PARAMETERS ON THE GEOMETRY OF THE WELD POOL WHEN WELDING IN SHIELS GAS ATMOSPHERE

Authors

  • Josef Bradáč Technical University of Liberec, Faculty of Mechanical Engineering, Engineering Technology
  • Jaromír Moravec Technical University of Liberec, Faculty of Mechanical Engineering, Engineering Technology

DOI:

https://doi.org/10.14311/AP.2017.57.0078

Keywords:

weld pool geometry, process and technological parameters, GMAW, numerical simulations

Abstract

This paper is focused on welding with a consumable electrode in a gas shield atmosphere and its main aim is to show the influence of selected processes and technological parameters on the geometry of the weld pool in terms of theoretical and experimental views. For this purpose, the parametric areas defined by the change of the welding current and welding rate were determined. Apart from the influence of these parametric areas, the influence of other technological input variables, including the wire diameter and preheating temperature, was also studied. The experimentally obtained geometric data of the weld pool can be used for technological welding procedures WPS and especially for simulation calculations to obtain a more accurate numerical model of the heat source. This makes it possible to get accurate simulation results and to better understand the impact of other variables that influence the welding process. This all helps to the optimization of the welding process for several applications.

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Author Biographies

  • Josef Bradáč, Technical University of Liberec, Faculty of Mechanical Engineering, Engineering Technology
    Engineering Technology department
  • Jaromír Moravec, Technical University of Liberec, Faculty of Mechanical Engineering, Engineering Technology
    Engineering Technology department

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Published

2017-05-02

Issue

Vol. 57 No. 2 (2017)

Section

Articles

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How to Cite

Bradáč, J., & Moravec, J. (2017). THE IMPACT OF SELECTED PROCESSES AND TECHNOLOGICAL PARAMETERS ON THE GEOMETRY OF THE WELD POOL WHEN WELDING IN SHIELS GAS ATMOSPHERE. Acta Polytechnica, 57(2), 78-88. https://doi.org/10.14311/AP.2017.57.0078