Trabalho de Conclusão de Curso - Graduação

Efeito do tecimento em Soldagem por Fricção Linear (FSW) aplicado em alumínio naval 5052 f

Linear Friction Welding (SFL), or Friction Stir Welding (FSW), has emerged with the aim of improving the materials that are commonly welded by fusion and which can easily generate several defects, such as lack of fusion for example, that compromise your mechanical performance. In addition to being c...

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Autor principal: OLIVEIRA, Karymme Mayara Barbosa de
Grau: Trabalho de Conclusão de Curso - Graduação
Publicado em: 2019
Assuntos:
Acesso em linha: http://bdm.ufpa.br/jspui/handle/prefix/980
Resumo:
Linear Friction Welding (SFL), or Friction Stir Welding (FSW), has emerged with the aim of improving the materials that are commonly welded by fusion and which can easily generate several defects, such as lack of fusion for example, that compromise your mechanical performance. In addition to being considered as an environmentally friendly welding, SFL may be applicable to most metals, causing less modification of the original properties by mixing the material below the melting temperature. The fabrication was included in this type of welding in 5052 F naval plates to verify possible contributions in the properties of the joints, giving by the triangular trajectory, with the amplitudes of 0,5, 1,0 and 2,0 mm, and frequencies of 0,116, 0,109 and 0,031 Hz, being compared to the process without weighting, keeping the rest of the parameters equal, such as rotation speed, inclination angle, among others. From the macroscopy, microhardness, folding, traction and fractography, in the scanning electron microscope, performed in the samples of each welding condition, this method presented gain in the mechanical properties with the amplitudes 0,5 mm and 2,0 mm by the best density of this mixture indicating a good parameterization, mainly due to the pressure applied by the tool, which did not occur with the amplitude of 1,0 mm, obtaining a performance lower than the weld.