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Experimental Research on the Electrical Parameters of GMAW on Different Positions Welds

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Abstract

This paper presents the influence of the main parameters of the GMAW welding process on ingot iron sized 300 × 125 × 3 mm3, with a 1 mm separation between edges and without any bevel preparation. Three gases were used in this research: CO2, C15 and C25, with the purpose of studying the shielding influence of each of these gases separately in the welding process. In this research different power ranges were used with the purpose to assure the quality of the surface finish on the bead and the minimum penetration on the plates. The influence of the welding torch’s direction of advancement (forehand or backhand) for positions PA, PC and PE were studied together with its influence on the power source. The position which needed the least energy was the PA, followed by position PC and then position PE. The forehand advancement direction required more power than the backhand advancement direction for all positions. The influence of the gases from high to low on the width of the root bead and face bead was C15, CO2 and C25. This work would be useful to evaluate the influence of the welding parameters on a welding procedure specification with the GMAW welding process.

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Abbreviations

ASME V:

American Standard Mechanical Engineers, section V

AWS:

American Welding Society

C15:

Gas 15 % CO2 + 85 % Ar

C25:

Gas 25 % CO2 + 75 % Ar

EN:

European norm

GMAW:

Gas metal arc welding

ISO:

International Organization of Standardization

PA:

Flat position

PC:

Horizontal position

PE:

Overhead position

PA-back:

Backwards welding advance in position PA

PA-fore:

Forwards welding advance in position PA

PC-back:

Backwards welding advance in position PC

PC-fore:

Forwards welding advance in position PC

PE-back:

Backwards welding advance in position PE

PE-fore:

Forwards welding advance in position PE

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Author information

Authors and Affiliations

  1. Department of Applied Physics and Materials Engineering, ETSII, Technical University of Madrid, José Gutierrez Abascal st., 2, 28006, Madrid, Spain

    Gerardo Romaní, José L. Meseguer-Valdenebro & Antonio Portolés

  2. Inspection Department, Técnicas Reunidas Quintanavides, 2-4. Edificio Gorbea 5 – Pl. Baja, 28050, Madrid, Spain

    José L. Meseguer-Valdenebro

Authors
  1. Gerardo Romaní
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  2. José L. Meseguer-Valdenebro
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  3. Antonio Portolés
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Corresponding author

Correspondence to José L. Meseguer-Valdenebro.

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Romaní, G., Meseguer-Valdenebro, J.L. & Portolés, A. Experimental Research on the Electrical Parameters of GMAW on Different Positions Welds. Trans Indian Inst Met 70, 159–166 (2017). https://doi.org/10.1007/s12666-016-0872-1

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  • DOI: https://doi.org/10.1007/s12666-016-0872-1

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