Abstract
A comprehensive numerical model was developed to predict the transient temperature distribution during the gas metal arc welding process with the use of flat wire electrode (FW-GMAW). Since the perimeter of the flat wire electrode has increased, the turbulence of the molten characteristics is altered due to the effect of electromagnetic force. To validate, a general double ellipsoid moving heat source model was adopted and the numerical analysis predicted that the peak temperature had risen due to increased heat power density in the flat wire electrode. The proposed approach of numerical analysis confirmed that, the initial arc and steady state temperature was high for FW-GMAW process. In addition, the consequence of temperature distribution in FW-GMAW was analyzed and its significance to weld bead geometry was broadly discussed in this paper.
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23 July 2021
An Erratum to this paper has been published: https://doi.org/10.1007/s12206-021-0747-1
Abbreviations
- T :
-
Temperature
- Ė eng.element :
-
Internal heat generation
- t :
-
Time
- ρ :
-
Density
- cp:
-
Specific heat
- k:
-
Thermal conductivity in x, y and z directions, respectively
- σ:
-
Stefan-Boltzmann constant = 5.67×10∓8 Wm∓2 °C∓4
- h:
-
Convection coefficient
- ε:
-
Emissivity respectively
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Acknowledgments
The authors would like to express their sincere thanks to the Managing Trustee, and Principal, PSG College of Technology Coimbatore, for supporting the activities of the research work.
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K. Sripriyan is an Assistant Professor (Sr.Gr) in Mechanical Engineering, PSG College of Technology, Coimbatore.
M. Ramu is an Associate Professor of Mechanical Engineering, Amrita Vishwa Vidya Peetham University, India. He is also involved in research projects sponsored by DST, AICTE, BRNS and IGCAR for a tune of Rs 6 crores.
P. R. Thyla is a Professor and Head of Mechanical Engineering, PSG College of Technology, Coimbatore India. She is involved in research projects sponsored by DST, AICTE, BRNS and IGCAR.
K. Anantharuban is a Senior Technical Officer in Tata Global Beverage Limited, Idukki.
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Sripriyan, K., Ramu, M., Thyla, P.R. et al. Weld bead characterization of flat wire electrode in gmaw process part II: a numerical study. J Mech Sci Technol 35, 2615–2622 (2021). https://doi.org/10.1007/s12206-021-0532-1
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DOI: https://doi.org/10.1007/s12206-021-0532-1