Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloys
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.21/14016 |
Resumo: | In 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. |
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Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloysFriction stir weldingTool geometryDissimilar aluminium alloysTorqueTemperatureIn 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.MDPIRCIPLManuel, NevesBeltrão, DanielGalvão, IvanLeal, RuiCosta, José D.Loureiro, Altino2021-11-18T14:59:01Z2021-10-132021-10-13T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/14016engMANUEL, 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. 1-2110.3390/ma142060201996-1944info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T10:09:37Zoai:repositorio.ipl.pt:10400.21/14016Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:21:54.062547Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloys |
title |
Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloys |
spellingShingle |
Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloys Manuel, Neves Friction stir welding Tool geometry Dissimilar aluminium alloys Torque Temperature |
title_short |
Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloys |
title_full |
Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloys |
title_fullStr |
Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloys |
title_full_unstemmed |
Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloys |
title_sort |
Influence of tool geometry and process parameters on torque, temperature, and quality of friction stir welds in dissimilar al alloys |
author |
Manuel, Neves |
author_facet |
Manuel, Neves Beltrão, Daniel Galvão, Ivan Leal, Rui Costa, José D. Loureiro, Altino |
author_role |
author |
author2 |
Beltrão, Daniel Galvão, Ivan Leal, Rui Costa, José D. Loureiro, Altino |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Manuel, Neves Beltrão, Daniel Galvão, Ivan Leal, Rui Costa, José D. Loureiro, Altino |
dc.subject.por.fl_str_mv |
Friction stir welding Tool geometry Dissimilar aluminium alloys Torque Temperature |
topic |
Friction stir welding Tool geometry Dissimilar aluminium alloys Torque Temperature |
description |
In 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. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-11-18T14:59:01Z 2021-10-13 2021-10-13T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.21/14016 |
url |
http://hdl.handle.net/10400.21/14016 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
MANUEL, 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. 1-21 10.3390/ma14206020 1996-1944 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133489992302592 |