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Shoulder related temperature thresholds in FSSW of aluminium alloys

2021-08-05Journal article Open access
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dc.contributor.authorAndrade, David G.
dc.contributor.authorS, SREE
dc.contributor.authorLeitao, Carlos
dc.contributor.authorRodrigues, Dulce
dc.date.accessioned2021-09-20T09:34:01Z
dc.date.available2021-09-20T09:34:01Z
dc.date.issued2021-08-05
dc.description.abstractFriction Stir Spot Welding (FSSW) is assumed as an environment-friendly technique, suitable for the spot welding of several materials. Nevertheless, it is consensual that the temperature control during the process is not feasible, since the exact heat generation mechanisms are still unknown. In current work, the heat generation in FSSW of aluminium alloys, was assessed by producing bead-on-plate spot welds using pinless tools. Coated and uncoated tools, with varied diameters and rotational speeds, were tested. Heat treatable (AA2017, AA6082 and AA7075) and non-heat treatable (AA5083) aluminium alloys were welded to assess any possible influence of the base material properties on heat generation. A parametric analysis enabled to establish a relationship between the process parameters and the heat generation. It was found that for rotational speeds higher than 600 rpm, the main process parameter governing the heat generation is the tool diameter. For each tool diameter, a threshold in the welding temperature was identified, which is independent of the rotational speed and of the aluminium alloy being welded. It is demonstrated that, for aluminium alloys, the temperature in FSSW may be controlled using a suitable combination of rotational speed and tool dimensions. The temperature evolution with process parameters was modelled and the model predictions were found to fit satisfactorily the experimental results.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationANDRADE, David G.; [et al] – Shoulder related temperature thresholds in FSSW of aluminium alloys. Materials. eISSN 1996-1944. Vol. 14, N.º 16 (2021), pp. 1-14pt_PT
dc.identifier.doi10.3390/ma14164375pt_PT
dc.identifier.eissn1996-1944
dc.identifier.urihttp://hdl.handle.net/10400.21/13746
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationPOCI-01-0145-FEDER-032089 - Project Friction 4.0pt_PT
dc.relationInstitute for Sustainability and Innovation in Structural Engineering
dc.relationCentre for Mechanical Enginnering, Materials and Processes
dc.relationAnalysis of the thermo-mechanical conditions in friction stir based technologies
dc.relation.publisherversionhttps://www.mdpi.com/1996-1944/14/16/4375pt_PT
dc.subjectAluminium alloyspt_PT
dc.subjectTemperaturept_PT
dc.subjectFSSWpt_PT
dc.titleShoulder related temperature thresholds in FSSW of aluminium alloyspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInstitute for Sustainability and Innovation in Structural Engineering
oaire.awardTitleCentre for Mechanical Enginnering, Materials and Processes
oaire.awardTitleAnalysis of the thermo-mechanical conditions in friction stir based technologies
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04029%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00285%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_CENTRO/SFRH%2FBD%2F130196%2F2017/PT
oaire.citation.endPage14pt_PT
oaire.citation.issue16pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleMaterialspt_PT
oaire.citation.volume14pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPOR_CENTRO
person.familyNameSHUNMUGAM
person.familyNameLeitao
person.familyNameRodrigues
person.givenNameSREE SABARI
person.givenNameCarlos
person.givenNameDulce
person.identifier887124
person.identifier.ciencia-id5711-3A04-73CA
person.identifier.ciencia-id9E17-DA8F-CC8A
person.identifier.ciencia-id4818-1AA4-940A
person.identifier.orcid0000-0003-3567-8228
person.identifier.orcid0000-0003-0181-7146
person.identifier.orcid0000-0002-4494-5458
person.identifier.ridF-1485-2010
person.identifier.ridG-3823-2018
person.identifier.scopus-author-id57190024964
person.identifier.scopus-author-id24331810700
person.identifier.scopus-author-id7102104985
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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