INFLUENCE OF DIFFERENT ASSEMBLIES ON PRE-HEATING THE HSLA SAR 80T STEEL ON COATED ELECTRODE WELDING

Autores

  • J. S. Bastos Centro Universitário Estadual da Zona Oeste
  • C. A. M. Ferreira Centro Universitário Estadual da Zona Oeste
  • M. C.L. Souza Centro Universitário Estadual da Zona Oeste
  • J. S. Dias CEFET/RJ
  • N. C. O. Tapanes Centro Universitário Estadual da Zona Oeste

DOI:

https://doi.org/10.5380/reterm.v19i2.78612

Palavras-chave:

ARBL steels, addition electrode, preheating, crack, cost

Resumo

The present work evaluated the influence of assemblies other than preheating in the welding process obtained by coated electrode, using high strength and low alloy steel SAR 80T as the base metal and the AWS E7018 electrode as the addition metal. In order to prevent cracks, preheating and interpassing for low alloy steel was performed. Depending on the way the preheating equipment is installed, it may take more or less time to reach the preheat temperature. Different assembly arrangements for top joints were evaluated, aiming at cost reduction, in addition to evaluations of the mechanical properties of the joint. Visual testing, ultrasound, micrography, macrography and cross-sectional traction were performed. The results obtained were considered acceptable and showed that there was an influence on time, cost of preheating and resistance to impact.

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Publicado

2020-12-21

Como Citar

Bastos, J. S., Ferreira, C. A. M., Souza, M. C., Dias, J. S., & Tapanes, N. C. O. (2020). INFLUENCE OF DIFFERENT ASSEMBLIES ON PRE-HEATING THE HSLA SAR 80T STEEL ON COATED ELECTRODE WELDING. Revista Da Engenharia Térmica, 19(2), 40–45. https://doi.org/10.5380/reterm.v19i2.78612

Edição

v. 19 n. 2 (2020)

Seção

Technology

Licença

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