Laser-assisted friction stir welding of magnesium and magnesium/aluminium dissimilar joints

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The present master thesis is dealing with the influence of workpiece temperature in the process loads, generated during the FSW process. The investigation is focused on welding of the magnesium alloy AZ31. To affect the initial temperature of the joining members, two different methods are investigat...

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Detalles Bibliográficos
Autor: Hennig, Martin
Formato: tesis de maestría
Fecha de Publicación:2013
Institución:Pontificia Universidad Católica del Perú
Repositorio:PUCP-Institucional
Lenguaje:inglés
OAI Identifier:oai:repositorio.pucp.edu.pe:20.500.14657/146014
Enlace del recurso:http://hdl.handle.net/20.500.12404/6241
Nivel de acceso:acceso abierto
Materia:Soldadura
Uniones soldadas
https://purl.org/pe-repo/ocde/ford#2.03.01
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spelling Bergmann, Jean PierreHennig, Martin2015-08-20T16:35:43Z2015-08-20T16:35:43Z20132015-08-20http://hdl.handle.net/20.500.12404/6241The present master thesis is dealing with the influence of workpiece temperature in the process loads, generated during the FSW process. The investigation is focused on welding of the magnesium alloy AZ31. To affect the initial temperature of the joining members, two different methods are investigated. by using a laser, the material is heated and soften local direct in front of the welding tool. In contrast, a heating element, located beneath the workpieces, enable the heating of a laser area. The consequences of both methods are regarded and compared in the investigation. In addition, the comparison to the conventional welding process is made. Thereby, main aspects are the rached load levels as well as surface appearance and tensile properties. the successfully reduction of process forces is obtained for both procedures; however, the tensile properties got worse.Das Anliegen dieser Arbeit ist es, den Einfluss der Ausgangstemperatur der zu fügenden Teile auf die für den Rührreibprozess charakteristischen Belastungen zu erarbeiten. Fokus der Untersuchungen lag dabei auf dem Fügen der Magnesiumbasislegierung AZ31. Die Erhöhung der Grundtemperatur der Werkstoffe wurde dabei auf zwei unterschiedliche Weisen erzeugt. Zum einen das lokale aufwärmen und Erweichen der Fügepartner, welches durch den Einsatz eines Lasers erreicht wurde, der direkt vor dem Schweißwerkzeug angebracht war. Die andere Methode beinhaltete das Einsetzen eines Heizelementes unter den Werkstoffen. Dadurch wurde eine gleichmäßige Erwärmung über die gesamte Fläche erreicht. Im Verlauf der Untersuchung wurden die Ergebnisse beider Methoden betrachtet und hinsichtlich der Prozesskräfte sowie Oberflächenbeschaffenheit und Festigkeitseigenschaften verglichen. Dazu wurden auch Schweißungen des konventionellen Rührreibschweißverfahrens herangezogen. Als Ergebnis konnte eine deutliche Verringerung der Prozesskräfte für beide Verfahren festgestellt werden. Allerdings war eine Verschlechterung der Festigkeitswerte zu beobachten.TesisengPontificia Universidad Católica del PerúPEinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/2.5/pe/SoldaduraUniones soldadashttps://purl.org/pe-repo/ocde/ford#2.03.01Laser-assisted friction stir welding of magnesium and magnesium/aluminium dissimilar jointsinfo:eu-repo/semantics/masterThesisTesis de maestríareponame:PUCP-Institucionalinstname:Pontificia Universidad Católica del Perúinstacron:PUCPMaestro en Ingeniería MecánicaMaestríaPontificia Universidad Católica del Perú. Escuela de PosgradoIngeniería Mecánica713347https://purl.org/pe-repo/renati/level#maestrohttp://purl.org/pe-repo/renati/type#tesis20.500.14657/146014oai:repositorio.pucp.edu.pe:20.500.14657/1460142024-06-10 10:05:34.472http://creativecommons.org/licenses/by-nc-nd/2.5/pe/info:eu-repo/semantics/openAccessmetadata.onlyhttps://repositorio.pucp.edu.peRepositorio Institucional de la PUCPrepositorio@pucp.pe
dc.title.es_ES.fl_str_mv Laser-assisted friction stir welding of magnesium and magnesium/aluminium dissimilar joints
title Laser-assisted friction stir welding of magnesium and magnesium/aluminium dissimilar joints
spellingShingle Laser-assisted friction stir welding of magnesium and magnesium/aluminium dissimilar joints
Hennig, Martin
Soldadura
Uniones soldadas
https://purl.org/pe-repo/ocde/ford#2.03.01
title_short Laser-assisted friction stir welding of magnesium and magnesium/aluminium dissimilar joints
title_full Laser-assisted friction stir welding of magnesium and magnesium/aluminium dissimilar joints
title_fullStr Laser-assisted friction stir welding of magnesium and magnesium/aluminium dissimilar joints
title_full_unstemmed Laser-assisted friction stir welding of magnesium and magnesium/aluminium dissimilar joints
title_sort Laser-assisted friction stir welding of magnesium and magnesium/aluminium dissimilar joints
author Hennig, Martin
author_facet Hennig, Martin
author_role author
dc.contributor.advisor.fl_str_mv Bergmann, Jean Pierre
dc.contributor.author.fl_str_mv Hennig, Martin
dc.subject.es_ES.fl_str_mv Soldadura
Uniones soldadas
topic Soldadura
Uniones soldadas
https://purl.org/pe-repo/ocde/ford#2.03.01
dc.subject.ocde.es_ES.fl_str_mv https://purl.org/pe-repo/ocde/ford#2.03.01
description The present master thesis is dealing with the influence of workpiece temperature in the process loads, generated during the FSW process. The investigation is focused on welding of the magnesium alloy AZ31. To affect the initial temperature of the joining members, two different methods are investigated. by using a laser, the material is heated and soften local direct in front of the welding tool. In contrast, a heating element, located beneath the workpieces, enable the heating of a laser area. The consequences of both methods are regarded and compared in the investigation. In addition, the comparison to the conventional welding process is made. Thereby, main aspects are the rached load levels as well as surface appearance and tensile properties. the successfully reduction of process forces is obtained for both procedures; however, the tensile properties got worse.
publishDate 2013
dc.date.created.es_ES.fl_str_mv 2013
dc.date.accessioned.es_ES.fl_str_mv 2015-08-20T16:35:43Z
dc.date.available.es_ES.fl_str_mv 2015-08-20T16:35:43Z
dc.date.issued.fl_str_mv 2015-08-20
dc.type.es_ES.fl_str_mv info:eu-repo/semantics/masterThesis
dc.type.other.none.fl_str_mv Tesis de maestría
format masterThesis
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/20.500.12404/6241
url http://hdl.handle.net/20.500.12404/6241
dc.language.iso.es_ES.fl_str_mv eng
language eng
dc.rights.es_ES.fl_str_mv info:eu-repo/semantics/openAccess
dc.rights.uri.*.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/2.5/pe/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/2.5/pe/
dc.publisher.es_ES.fl_str_mv Pontificia Universidad Católica del Perú
dc.publisher.country.es_ES.fl_str_mv PE
dc.source.none.fl_str_mv reponame:PUCP-Institucional
instname:Pontificia Universidad Católica del Perú
instacron:PUCP
instname_str Pontificia Universidad Católica del Perú
instacron_str PUCP
institution PUCP
reponame_str PUCP-Institucional
collection PUCP-Institucional
repository.name.fl_str_mv Repositorio Institucional de la PUCP
repository.mail.fl_str_mv repositorio@pucp.pe
_version_ 1835638205527883776
score 13.987519
Laser-assisted friction stir welding of magnesium and magnesium/aluminium dissimilar joints
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