Authors : C. Labesh Kumar

Volume/Issue : Volume 10 - 2025, Issue 1 - January

Google Scholar : https://tinyurl.com/2n2ebjsa

Scribd : https://tinyurl.com/yxbbcc77

DOI : https://doi.org/10.5281/zenodo.14709726

Abstract : An experimental investigation was conducted to identify and optimize the factors influencing the welding strength of C45 (AISI-1045) steel. C45, a medium carbon steel known for its excellent machinability and high strength, is frequently employed in applications requiring significant tensile strength and hardness. The 10 mm thick medium carbon steel plate was welded using Metal Inert Gas Welding. For Gas Metal Arc Welding (GMAW), the deposited thickness is 10 mm, with a qualified range of 3 to 20 mm (multi-run). This study offers a thorough evaluation of various research efforts in the realm of GMAW of steel, aiming to illustrate the impact of process variables and input parameters on weld quality characteristics. To achieve this, detailed literature reviews and comparisons of diverse findings were performed, and insights were synthesized. Where discrepancies in parameter effects were identified, appropriate explanations and justifications were provided. Consequently, it was determined that arc voltage, welding current, wire feed rate, and travel speed have a substantial impact on weld quality (particularly regarding penetration, bead height, bead width, and heat- affected zone) in comparison to other parameters examined. This indicates that accurately establishing the optimal combination of welding parameters especially arc voltage, welding current, wire feed rate, and travel speed—results in the desired quality level of the weldment.

Keywords : Metal Inert Gas Welding, Welding Parameters, Weld Quality Characteristics, Steel Materials, Process Condition.

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