Influence of an external applied AC magnetic field on the melt pool dynamics at high-power laser beam welding

dc.contributor.authorÜstündağ, Ömer
dc.contributor.authorBakir, Nasim
dc.contributor.authorGumenyuk, Andrey
dc.contributor.authorRethmeier, Michael
dc.date.accessioned2022-04-27T15:45:20Z
dc.date.available2022-04-27T15:45:20Z
dc.date.issued2021
dc.description.abstractThe study deals with the determination of the influence of an externally applied oscillating magnetic field on the melt pool dynamics in high power laser beam and hybrid laser arc welding processes. An AC magnet was positioned under the workpiece which is generating an upward directed electromagnetic force to counteract the formation of the droplets. To visualise the melt flow characteristics, several experiments were carried out using a special technique with mild steel from S355J2 with a plate thickness of up to 20 mm and a quartz glass in butt configuration. The profile of the keyhole and the melt flow were recorded with a highspeed camera from the glass side. Additionally, the influence of the magnetic field orientation to the welding direction on the filler material dilution on laser hybrid welding was studied with variating oscillation frequency. The element distribution over the whole seam thickness was measured with X-ray fluorescence (XRF). The oscillation frequency demonstrated a great influence on the melt pool dynamics and the mixing of the elements of the filler wire. The highspeed recordings showed, under the influence of the magnetic field, that the melt is affected under strong vortex at the weld root, which also avoids the formation of droplets.en
dc.identifier.eissn1757-899X
dc.identifier.issn1757-8981
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/16770
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-15548
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/en
dc.subject.ddc530 Physikde
dc.subject.othermagnetic fielden
dc.subject.othermelt pool dynamicsen
dc.subject.otherhigh-power laser beam weldingen
dc.subject.otherweldingen
dc.subject.otherexternal applied ACen
dc.titleInfluence of an external applied AC magnetic field on the melt pool dynamics at high-power laser beam weldingen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber012017en
dcterms.bibliographicCitation.doi10.1088/1757-899X/1135/1/012017en
dcterms.bibliographicCitation.journaltitleIOP Conference Series: Materials Science and Engineeringen
dcterms.bibliographicCitation.originalpublishernameIOPen
dcterms.bibliographicCitation.originalpublisherplaceBristolen
dcterms.bibliographicCitation.volume1135en
tub.accessrights.dnbfreeen
tub.affiliationFak. 5 Verkehrs- und Maschinensysteme::Inst. Werkzeugmaschinen und Fabrikbetrieb::FG Fügetechnikde
tub.affiliation.facultyFak. 5 Verkehrs- und Maschinensystemede
tub.affiliation.groupFG Fügetechnikde
tub.affiliation.instituteInst. Werkzeugmaschinen und Fabrikbetriebde
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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