Abstract
Thicker thickness materials are employed mostly in heavy constructions, vehicles, and industries, when assembly is suggested various procedures can be proposed for their joining. Gas metal arc welding (GMAW) is still the most attractive welding technology applied in many industries, mainly due to an excellent performance, usability, and competitiveness. In thicker structural steels, multipass welding is usually performed. Defects and discontinuities are generated between the application of each bead, since the heat input in each pass easily affects the microstructure and, therefore, the reduction of mechanical properties, which could be controlled by optimized parameters. Contrarily, a double-wire GMAW can be applied, as an alternative welding technology, in order to reduce the cycle time in bevel-type welding, obtaining secondary benefits. In this work, conventional and double-wire GMAW welds were performed using a structural steel, employing the same power source with some modifications in the torch for double-wire welding, up to 25 mm thickness, where welding bead was satisfactory and obtaining more than 70% of penetration, achieving good heat input stability at double-wire samples.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Miranda-Pérez, A.F., Rodríguez-Vargas, B.R., Cantón-Croda, R.M. et al. Heat input effect in a multipass and double-wire GMAW welding of a thick structural steel for industrial applications. MRS Advances 7, 1044–1048 (2022). https://doi.org/10.1557/s43580-022-00398-w
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DOI: https://doi.org/10.1557/s43580-022-00398-w