Resistance spot welding characterization of press hardened steel
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2017
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ENCONTRO CIENTÍFICO DE FÍSICA APLICADA, 8.
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Resumo
In the automotive industry the resistance spot welding (RSW) is one of the most used processes for joining
steel sheets, being of fundamental importance the quality assurance of this process. In this work, 22MnB5
steel sheets for the hot stamping process, also known as PHS (Press Hardening Steel), were joined by the
technique of resistance spot welding, so that the welding parameters were changed 16 times for the
evaluation of the influence of these parameters on the mechanical properties. By conducting ultrasonic,
tensile and hardness test, followed by metallography, it was possible to identify the characteristics of the
spot weld effect on the material. The results of the tests performed in this work confirmed the difference in
mechanical strength of the thermal zone (ZTA) in relation to the molten zone (ZF). For a certain set of the
parameters it was shown a decrease in the strength of the ZTA and increasing to the weld point, which is
demonstrated in the microstructural analysis and thus justifies the detachment of the weld button of the
base material during tensile testing, i.e., there was a higher strength in the welded area.
Como referenciar
ABBADE, L.; LARA, J.A.C.; COUTO, C.P.; GONSALEZ, B.; COLOSIO, M.A.; ROSSI, J.L. Resistance spot welding characterization of press hardened steel. In: ENCONTRO CIENTÍFICO DE FÍSICA APLICADA, 8., 4-7 de setembro, 2017, Vitória, ES. Anais... São Paulo, SP: Blucher Proceedings, 2017. p. 10-13. DOI: 10.5151/phypro-viii-efa-03. Disponível em: http://repositorio.ipen.br/handle/123456789/31225. Acesso em: 03 Jul 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.