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Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloys

2021-10-13Journal article Open access
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dc.contributor.authorManuel, Neves
dc.contributor.authorBeltrão, Daniel
dc.contributor.authorGalvão, Ivan
dc.contributor.authorLeal, Rui
dc.contributor.authorCosta, José D.
dc.contributor.authorLoureiro, Altino
dc.date.accessioned2021-11-18T14:59:01Z
dc.date.available2021-11-18T14:59:01Z
dc.date.issued2021-10-13
dc.description.abstractIn the current investigation, the influence of the tool geometry, the position of the materials in the joint, the welding speed on the temperature and torque developed, and on the quality of the welds in dissimilar and tri-dissimilar T joints were analysed. The aluminium alloys used were AA2017-T4, AA6082-T6, and AA5083-H111 and the friction stir welds were performed with identical shoulder tools, but with either a pin with simple geometry or a pin with progressive geometry. Progressive pin tools proved to be a viable alternative in the production of dissimilar and tri-dissimilar welds, as they provide a larger tool/material friction area and a larger volume of dragged material, which promotes an increase in the heat generated and a good mixing of the materials in the stir zone, although they require a higher torque. Placing a stronger material on the advancing side also results in a higher temperature in the stir zone but requires higher torque too. The combination of these factors showed that tools with a progressive pin provide sound dissimilar and tri-dissimilar welds, unlike single-pin tools. The increase in the welding speed causes the formation of defects in the stir zone, even in tri-dissimilar welds carried out with a tool with a progressive pin, which impairs the fatigue strength of the welds.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMANUEL, Neves; [et al] – Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloys. Materials. eISSN 1996-1944. Vol. 14, N.º 20 (2021), pp. 1-21pt_PT
dc.identifier.doi10.3390/ma14206020pt_PT
dc.identifier.eissn1996-1944
dc.identifier.urihttp://hdl.handle.net/10400.21/14016
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationUIDB/00285/2020 - FEDER funds through the program COMPETE– Programa Operacional Factores de Competitividade / FCTpt_PT
dc.relation.publisherversionhttps://www.mdpi.com/1996-1944/14/20/6020pt_PT
dc.subjectFriction stir weldingpt_PT
dc.subjectTool geometrypt_PT
dc.subjectDissimilar aluminium alloyspt_PT
dc.subjectTorquept_PT
dc.subjectTemperaturept_PT
dc.titleInfluence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloyspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage21pt_PT
oaire.citation.issue20pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleMaterialspt_PT
oaire.citation.volume14pt_PT
person.familyNameManuel
person.familyNameGalvão
person.familyNameLeal
person.familyNameCOSTA
person.familyNameLoureiro
person.givenNameNeves
person.givenNameIvan
person.givenNameRui
person.givenNameJOSE
person.givenNameAltino
person.identifier.ciencia-id2814-DED6-8E2D
person.identifier.ciencia-id581F-44DA-F99D
person.identifier.ciencia-id001C-1230-7699
person.identifier.ciencia-idA519-5633-D83E
person.identifier.ciencia-idAE1C-2A8C-C1BA
person.identifier.orcid0000-0001-5244-2394
person.identifier.orcid0000-0002-2580-7148
person.identifier.orcid0000-0001-6416-0191
person.identifier.orcid0000-0002-8274-3734
person.identifier.orcid0000-0001-9315-3177
person.identifier.ridF-4418-2017
person.identifier.ridD-7068-2014
person.identifier.scopus-author-id36650802900
person.identifier.scopus-author-id18434853300
person.identifier.scopus-author-id24300970300
person.identifier.scopus-author-id7006541492
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication77ad7655-2d94-49a7-ad9c-d15ba261a88f
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relation.isAuthorOfPublication.latestForDiscovery77ad7655-2d94-49a7-ad9c-d15ba261a88f

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