One-sided laser beam welding of autogenous T-joints for 6013-T4 aluminium alloy

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dc.contributor.authorOliveira, A. C.
dc.contributor.authorSiqueira, R. H. M.
dc.contributor.authorRiva, R.
dc.contributor.authorLima, M. S. F.
dc.contributor.institutionITA
dc.contributor.institutionIEAv
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T14:39:50Z
dc.date.available2016-01-24T14:39:50Z
dc.date.issued2015-01-01
dc.description.abstractAutogenous T-joints for aluminium skin-stringer component performed by one-sided laser beam welding process was conducted using a high power Yb-fiber laser. the influence of the shielding gas, seam angle, beam focal position, and beam positioning relative to weld centerline were investigated regarding to weld microstructural features. the joint mechanical behavior was evaluated concerning to the sheet rolling directions. It was observed that a precise control of the process parameters enabled to obtain weld beads with acceptable dimensional and geometric characteristics and minimizing weld defects. Helium shielding gas produced higher aspect ratio welds than those with pure argon. Although, pores were observed in the fusion zone, they represented only about 5% of the weld bead area. the optimal beam positioning should remain up to 0.2 mm relative to junction line, for seam angles between 10 degrees and 15 degrees. the weld mechanical behavior depended on the sheet rolling direction. Joint efficiency up to 85% were obtained after hoop tensile tests when the weld bead longitudinal-section was perpendicular to skin rolling direction and parallel to the stringer rolling direction. (C) 2014 Elsevier B.V. All rights reserved.en
dc.description.affiliationITA, BR-1228900 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationIEAv, DCTA, BR-12228001 Sao Jose Dos Campos, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIDFAPESP: 2007-03910-7
dc.format.extent726-736
dc.identifierhttp://dx.doi.org/10.1016/j.matdes.2014.09.055
dc.identifier.citationMaterials & Design. Oxford: Elsevier B.V., v. 65, p. 726-736, 2015.
dc.identifier.doi10.1016/j.matdes.2014.09.055
dc.identifier.issn0261-3069
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/38589
dc.identifier.wosWOS:000345520000089
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofMaterials & Design
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.subjectLaser beam weldingen
dc.subjectYb-fiber laseren
dc.subjectAutogenous T-jointsen
dc.subjectAluminium alloyen
dc.titleOne-sided laser beam welding of autogenous T-joints for 6013-T4 aluminium alloyen
dc.typeinfo:eu-repo/semantics/article
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