Investigating the potential of magnetic are oscillated GMWA - welding for hard surfacing applications

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The flux cored arc welding process has some characteristic features and is therefore established in the industry to fabricate hardfacing. One advantage of the process is the possibility to vary the alloy content of the weld metal by manipulating the chemical composition of the filler material. Moreo...

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Detalles Bibliográficos
Autor: Nagel, Falk
Formato: tesis de maestría
Fecha de Publicación:2012
Institución:Pontificia Universidad Católica del Perú
Repositorio:PUCP-Institucional
Lenguaje:inglés
OAI Identifier:oai:repositorio.pucp.edu.pe:20.500.14657/146035
Enlace del recurso:http://hdl.handle.net/20.500.12404/6235
Nivel de acceso:acceso abierto
Materia:Soldadura
Soldadura eléctrica--Aplicaciones
Soldadura y corte oxiacetilénicos
https://purl.org/pe-repo/ocde/ford#2.03.01
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network_acronym_str RPUC
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spelling Bergmann, Jean PierreRumiche Zapata, Francisco AurelioGunther, KarstenNagel, Falk2015-08-19T17:50:05Z2015-08-19T17:50:05Z20122015-08-19http://hdl.handle.net/20.500.12404/6235The flux cored arc welding process has some characteristic features and is therefore established in the industry to fabricate hardfacing. One advantage of the process is the possibility to vary the alloy content of the weld metal by manipulating the chemical composition of the filler material. Moreover, it is possible to produce self shielding electrodes, which show advantages for outdoor applications. One the other hand this process creates high dilution rates. One possibility to avoid this effect is to apply a magnetic field in order to deflect the welding arc. In this thesis, the influence of a transversal magnetic field on the weld seam formation during FCAW was investigated. An increase of the weld width and a simultaneous decrease of the penetration depth was achieved at a certain deflection. The influence of the magnetic oscillation was found to be stronger for short circuit mode than for pulsed mode. Furthermore, high frequencies in combination with a high magnetic flux density caused a reduced process stability and consequently a worsening of the weld bead appearance. Apart from that, the drop detachment was inhibited, when a strong magnetic field was applied during pulsed and spray mode.Das Metallschutzgasschweißen mit Fülldrahtelektrode ist ein in der Industrie verbreitetes Verfahren zur Herstellung von Hartpanzerungen. Charakteristisch ist die gezielte Beeinflussung des Schweißprozesses und der chemischen Zusammensetzung des Schweißguts durch die Auswahl der Füllstoffe. Des Weiteren können dem Fülldraht Stoffe hinzugegeben werden, wodurch das Schweißen ohne Schutzgas durchgeführt werden kann. Nachteilig ist jedoch der hohe Aufmischungsgrad bei diesem Verfahren. Eine Möglichkeit, diesem Effekt entgegenzuwirken, besteht darin, den Lichtbogen durch das Anlegen eines Magnetfelds in eine oszillierende Bewegung zu versetzen. Der Einfluss eines oszillierenden transversalen Magnetfeldes auf die Nahtausbildung beim MSG-Schweißen mit Fülldraht wurde untersucht. Es zeigt sich dabei, dass der Einbrand verbreitert und die Einbrandtiefe durch die gezielte Auslenkung verringert werden konnte. Der Einfluss des magnetischen Pendelns ist beim Kurzschlusslichtbogen kleiner als beim Impulslichtbogen. Bei hohen Frequenzen und hoher Flussdichte wurde außerdem eine Verringerung der Prozessstabilität und eine daraus resultierende Verschlechterung der Schweißnahtausbildung festgestellt. Außerdem führte ein starker Einfluss des Magnetfelds zu einer erschwerten Tropfenablösung beim Impluls- und Sprühlichtbogen.TesisengPontificia Universidad Católica del PerúPEinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/2.5/pe/SoldaduraSoldadura eléctrica--AplicacionesSoldadura y corte oxiacetilénicoshttps://purl.org/pe-repo/ocde/ford#2.03.01Investigating the potential of magnetic are oscillated GMWA - welding for hard surfacing applicationsinfo: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#tesis20.500.14657/146035oai:repositorio.pucp.edu.pe:20.500.14657/1460352024-06-10 09:57:22.208http://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 Investigating the potential of magnetic are oscillated GMWA - welding for hard surfacing applications
title Investigating the potential of magnetic are oscillated GMWA - welding for hard surfacing applications
spellingShingle Investigating the potential of magnetic are oscillated GMWA - welding for hard surfacing applications
Nagel, Falk
Soldadura
Soldadura eléctrica--Aplicaciones
Soldadura y corte oxiacetilénicos
https://purl.org/pe-repo/ocde/ford#2.03.01
title_short Investigating the potential of magnetic are oscillated GMWA - welding for hard surfacing applications
title_full Investigating the potential of magnetic are oscillated GMWA - welding for hard surfacing applications
title_fullStr Investigating the potential of magnetic are oscillated GMWA - welding for hard surfacing applications
title_full_unstemmed Investigating the potential of magnetic are oscillated GMWA - welding for hard surfacing applications
title_sort Investigating the potential of magnetic are oscillated GMWA - welding for hard surfacing applications
author Nagel, Falk
author_facet Nagel, Falk
author_role author
dc.contributor.advisor.fl_str_mv Bergmann, Jean Pierre
Rumiche Zapata, Francisco Aurelio
Gunther, Karsten
dc.contributor.author.fl_str_mv Nagel, Falk
dc.subject.es_ES.fl_str_mv Soldadura
Soldadura eléctrica--Aplicaciones
Soldadura y corte oxiacetilénicos
topic Soldadura
Soldadura eléctrica--Aplicaciones
Soldadura y corte oxiacetilénicos
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 flux cored arc welding process has some characteristic features and is therefore established in the industry to fabricate hardfacing. One advantage of the process is the possibility to vary the alloy content of the weld metal by manipulating the chemical composition of the filler material. Moreover, it is possible to produce self shielding electrodes, which show advantages for outdoor applications. One the other hand this process creates high dilution rates. One possibility to avoid this effect is to apply a magnetic field in order to deflect the welding arc. In this thesis, the influence of a transversal magnetic field on the weld seam formation during FCAW was investigated. An increase of the weld width and a simultaneous decrease of the penetration depth was achieved at a certain deflection. The influence of the magnetic oscillation was found to be stronger for short circuit mode than for pulsed mode. Furthermore, high frequencies in combination with a high magnetic flux density caused a reduced process stability and consequently a worsening of the weld bead appearance. Apart from that, the drop detachment was inhibited, when a strong magnetic field was applied during pulsed and spray mode.
publishDate 2012
dc.date.created.es_ES.fl_str_mv 2012
dc.date.accessioned.es_ES.fl_str_mv 2015-08-19T17:50:05Z
dc.date.available.es_ES.fl_str_mv 2015-08-19T17:50:05Z
dc.date.issued.fl_str_mv 2015-08-19
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/20.500.12404/6235
url http://hdl.handle.net/20.500.12404/6235
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_ 1835638547868024832
score 13.958958
Investigating the potential of magnetic are oscillated GMWA - welding for hard surfacing applications
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