Influence of different shielding gas ratios on the microstructure and mechanical properties of MIG/MAG robot welded JSC270C steel
DOI:
https://doi.org/10.53660/PRW-1989-3705Resumo
Welding is a manufacturing process that aims to create a permanent joint between two components using parameters such as heat, pressure, or energy. It is currently one of the most widely used processes in industry and there are no concerns about the safety of the products produced. Welding gases are responsible for the protection of the weld pool and the stability of the electric arc, which directly affects the quality and final properties of the weld. The aim of this study was to evaluate the current conditions of the welding process in a large company in the Manaus Industrial Pole (PIM), Amazonas-Brazil, in order to find the best ratio of shielding gases for MIG/MAG welding, with the aim of and optimizing the processes. Mechanical tensile and microhardness tests were carried out, based on JIS, ASTM and internal company standards, to evaluate the conditions and properties of the samples with the current shielding gas ratios used in the company, in order to find those that best match the reality of the processes.
Keywords: Shielding gases; MIG/MAG welding; Mechanical properties of the weld.
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Referências
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