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Publication
Avaliação da soldabilidade de aços ao carbono com o processo MAG
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| 3.56 MB | Adobe PDF |
Authors
Abstract(s)
A soldadura MAG é amplamente utilizada devido à sua versatilidade e eficiência na união de aços ao carbono. No entanto, a definição de parâmetros ótimos para o processo ainda é um desafio para garantir a qualidade e a confiabilidade das juntas soldadas. Este estudo teve como objetivo avaliar a soldabilidade do aço carbono no processo MAG, analisando a influência de diferentes parâmetros de soldadura. Para isso, foram realizados ensaios de flexão, tração, dureza Rockwell e análise macrográfica em corpos de prova soldados sob diferentes condições de tensão, velocidade e ângulo de soldadura. A metodologia envolveu um planejamento experimental baseado no método de Taguchi e na análise de variância dos resultados, para determinar a influência de cada parâmetro na qualidade da soldadura, buscando uma combinação ótima. Os resultados mostraram que a escolha adequada dos parâmetros pode otimizar as propriedades mecânicas das juntas soldadas, reduzindo defeitos e melhorando a resistência. Conclui-se que a seleção criteriosa das condições de soldadura é essencial para maximizar a soldabilidade do aço carbono no processo MAG, desempenhando um papel fundamental na obtenção de juntas de alta qualidade.
The MAG welding process is widely used because of its versatility and efficiency in joining carbon steels. However, defining the optimal parameters for the process is still a challenge to ensure the quality and reliability of the welded joints. The objective of this study was to evaluate the weldability of carbon steel in the MAG process, analyzing the influence of different welding parameters. Tests of bending, traction, Rockwell hardness and macrographic analysis were conducted on specimens welded under different conditions of welding voltage, speed and angle. The methodology involved experimental planning based on the Taguchi method and analysis of variance of the results, to determine the influence of each parameter on the quality of the weld, in order to find an optimal combination. The results showed that the appropriate selection of parameters can optimize the mechanical properties of welded joints, reducing defects and improving resistance. It is concluded that the careful selection of welding conditions is essential to maximize the weldability of carbon steel in the MAG process, which plays a fundamental role in obtaining high quality joints.
The MAG welding process is widely used because of its versatility and efficiency in joining carbon steels. However, defining the optimal parameters for the process is still a challenge to ensure the quality and reliability of the welded joints. The objective of this study was to evaluate the weldability of carbon steel in the MAG process, analyzing the influence of different welding parameters. Tests of bending, traction, Rockwell hardness and macrographic analysis were conducted on specimens welded under different conditions of welding voltage, speed and angle. The methodology involved experimental planning based on the Taguchi method and analysis of variance of the results, to determine the influence of each parameter on the quality of the weld, in order to find an optimal combination. The results showed that the appropriate selection of parameters can optimize the mechanical properties of welded joints, reducing defects and improving resistance. It is concluded that the careful selection of welding conditions is essential to maximize the weldability of carbon steel in the MAG process, which plays a fundamental role in obtaining high quality joints.
Description
Mestrado de dupla diplomação com a Universidade Tecnológica Federal do Paraná
Keywords
Soldadura Aço-carbono MAG GMAW Soldabilidade Taguchi ANOVA