Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

@article{180202,
        author = {G. Pugalvendhan and D.Noorullah and K.Venkatesan},
        title = {A Comprehensive Review of Gas Tungsten Arc Welding (GTAW) with a Focus on Weld Parameters},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {12},
        number = {1},
        pages = {432-436},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=180202},
        abstract = {This study reviews the critical parameters 
influencing Gas Tungsten Arc Welding (GTAW) and 
their impact on weld quality and performance. Welding 
current is identified as the most crucial factor affecting 
electrode burn-off, fusion depth, and weld geometry, 
with direct current electrode negative (DCEN) 
providing superior penetration and travel speed. 
Welding voltage, speed, and heat input play significant 
roles in controlling arc stability, heat transfer, and weld 
pool formation, ultimately shaping the weld’s 
mechanical and metallurgical properties. The selection 
and composition of shielding gases such as argon, 
helium, and their mixtures notably affect arc 
temperature, plasma characteristics, and penetration 
through phenomena like current constriction and 
Marangoni convection. Electrode tip geometry 
influences arc concentration and heat flux distribution, 
impacting arc velocity and welding efficiency. The use 
of filler metals tailored to the base material’s chemical 
and mechanical requirements ensures adequate 
strength, corrosion resistance, and crack prevention, 
particularly in thicker sections and specialized alloys. 
Understanding and optimizing these parameters 
enables the production of high-quality, defect-free 
welds with desired structural integrity and service 
performance.},
        keywords = {GTAW, HAZ, Welding Speed, Voltage,  Current, Heat Input, Shielding Gas, Filler Metal.},
        month = {May},
        }