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Effect of process parameters on the strength of resistance spot welds in 6082-T6 aluminium alloy

2010-05Journal article Open access
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
datacite.subject.fosCiências Naturais::Outras Ciências Naturais
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorPereira, A. M.
dc.contributor.authorFerreira, J. M.
dc.contributor.authorLoureiro, A.
dc.contributor.authorCosta, J. D. M.
dc.contributor.authorBártolo, P. J.
dc.date.accessioned2025-11-14T15:57:48Z
dc.date.available2025-11-14T15:57:48Z
dc.date.issued2010-05
dc.descriptionFonte: https://www.researchgate.net/publication/229393827_Effect_of_process_parameters_on_the_strength_of_resistance_spot_welds_in_6082-T6_aluminium_alloy
dc.description.abstractIn this study the microstructural and mechanical behaviour of resistance spot welds (RSW) done on aluminium alloy 6082-T6 sheets, welded at different welding parameters, is examined. Microstructural examinations and hardness evaluations were carried out in order to determine the influence of welding parameters on the quality of the welds. The welded joints were subjected to static tensile-shear tests in order to determine their strength and failure mode. The increase in weld current and duration increased the nugget size and the weld strength. Beyond a critical nugget diameter the failure mode changed from interfacial to pullout. Taking into consideration the sheet thickness and the mechanical properties of the weld, a simple model is proposed to predict the critical nugget diameter required to produce pull-out failure mode in undermatched welds in heat-treatable aluminium alloys.eng
dc.description.sponsorshipThe authors thank the financial support of the Portuguese Foundation for Science and Technology (Grant SFRH/BD/37384/2007) and the assistance of the company OGMA-Indústria Aeronáutica de Portugal in the execution of the welds.
dc.identifier.citationA.M. Pereira, J.M. Ferreira, A. Loureiro, J.D.M. Costa, P.J. Bártolo, Effect of process parameters on the strength of resistance spot welds in 6082-T6 aluminium alloy, Materials & Design (1980-2015), Volume 31, Issue 5, 2010, Pages 2454-2463, ISSN 0261-3069, https://doi.org/10.1016/j.matdes.2009.11.052.
dc.identifier.doi10.1016/j.matdes.2009.11.052
dc.identifier.eissn1873-4197
dc.identifier.issn0261-3069
dc.identifier.urihttp://hdl.handle.net/10400.8/14626
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0261306909006724?via%3Dihub
dc.relation.ispartofMaterials & Design (1980-2015)
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectWelding (D)
dc.subjectMechanical properties (E)
dc.subjectFailure analysis (H)
dc.titleEffect of process parameters on the strength of resistance spot welds in 6082-T6 aluminium alloyeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2463
oaire.citation.issue5
oaire.citation.startPage2454
oaire.citation.titleMaterials & Design
oaire.citation.volume31
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamePereira
person.familyNameBartolo
person.givenNameAntónio
person.givenNamePaulo
person.identifier203086
person.identifier.ciencia-id3E1F-25F1-8519
person.identifier.ciencia-id5810-9BF9-4522
person.identifier.orcid0000-0003-1219-0596
person.identifier.orcid0000-0003-3683-726X
person.identifier.ridN-4246-2013
person.identifier.ridF-2421-2013
person.identifier.scopus-author-id55989034000
person.identifier.scopus-author-id6603353041
relation.isAuthorOfPublication323d37cc-43ff-467a-b882-ac7363e5859c
relation.isAuthorOfPublicationab44d1ae-46d0-45c2-b19f-200024b5a990
relation.isAuthorOfPublication.latestForDiscovery323d37cc-43ff-467a-b882-ac7363e5859c

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In this study the microstructural and mechanical behaviour of resistance spot welds (RSW) done on aluminium alloy 6082-T6 sheets, welded at different welding parameters, is examined. Microstructural examinations and hardness evaluations were carried out in order to determine the influence of welding parameters on the quality of the welds. The welded joints were subjected to static tensile-shear tests in order to determine their strength and failure mode. The increase in weld current and duration increased the nugget size and the weld strength. Beyond a critical nugget diameter the failure mode changed from interfacial to pullout. Taking into consideration the sheet thickness and the mechanical properties of the weld, a simple model is proposed to predict the critical nugget diameter required to produce pull-out failure mode in undermatched welds in heat-treatable aluminium alloys.
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