Processing-induced residual stresses in TWIP steel weld spots
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2020
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Materials and Manufacturing Processes
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Resumo
The present study investigates the evolution of the residual stresses in TWIP steels induced by
manufacturing chain for the production of automotive body-in-white. Two different manufacturing
routes were considered. The first route encompassed a plastic deformation prior to the welding stage,
whereas the second involved the spot welding followed by a baking treatment. A convergent approach
was adopted to isolate the effects of the first and final manufacturing steps. The findings showed that
the plastic deformation prior to the welding stage is not annihilated by the welding thermomechanical
cycle. Abrupt hardness gradients along small material fractions are observed. The residual stresses state
changes, although its profile is still defined by the welding stage. The post-weld bake treatment showed
to promote slight residual stresses relaxation, but it is not effective in inducing the same post-weld
residual stresses state for different RSW parameters set.
Como referenciar
COLOMBO, TIAGO C.A.; REGO, RONNIE; FARIA, ALFREDO R. de; OTUBO, JORGE. Processing-induced residual stresses in TWIP steel weld spots. Materials and Manufacturing Processes, v. 35, n. 5, p. 572-578, 2020. DOI: 10426914.2020.1734619. Disponível em: http://repositorio.ipen.br/handle/123456789/31394. Acesso em: 19 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.