The influence of magnetic field orientation on metal mixing in electromagnetic stirring enhanced wire feed laser beam welding

dc.contributor.authorMeng, Xiangmeng
dc.contributor.authorBachmann, Marcel
dc.contributor.authorArtinov, Antoni
dc.contributor.authorRethmeier, Michael
dc.date.accessioned2021-10-01T12:55:43Z
dc.date.available2021-10-01T12:55:43Z
dc.date.issued2021-03-11
dc.description.abstractThe application of the electromagnetic stirring from an oscillating magnetic field can improve the metal mixing in wire feed laser beam welding. However, the extra parameters introduced in this technique make the selection of an optimal combination of process parameters more difficult. In the current study, besides the commonly concerned magnetic flux density and frequency, the influence of the magnetic field orientation (magnetic field angle) on the transport of filler metal is studied numerically and experimentally. Ex-situ X-ray fluorescence spectrometer measurements are used to map the metal mixing in the final weld. A three-dimensional transient multi-physical model is developed to reveal the deeper physical essence, considering the coupling between heat transfer, fluid flow, keyhole dynamics, element transport and magnetohydrodynamics. The spatial distribution of the laser energy on the keyhole wall is calculated by a ray tracing algorithm. The results show that the magnetic field with smaller angle with respect to the transverse direction provides better penetration capacity, and its stirring effect can reach the lower part of the molten pool. Therefore, the smaller magnetic field angle produces better metal mixing. A constant downward flow is formed at the lower part of the molten pool when magnetic field of 10° angle is applied, which brings the filler metal to the root region. As the magnetic field angle increases to 40°, the beneficial downward flow changes into a constant upward flow, resulting in a concentration of the filler metal in the upper region. This study provides further insight of the underlying physics in the electromagnetically enhanced laser beam welding, which may guide the optimization of parameters to achieve property homogeneity or to avoid potential defects.en
dc.description.sponsorshipDFG, 416014189, Simulation des Einflusses der elektromagnetisch unterstützten Durchmischung beim Laserstrahlschweißen dickwandiger Stahlbauteile mit Zusatzmaterialen
dc.identifier.eissn1873-4774
dc.identifier.issn0924-0136
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/13657
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-12445
dc.language.isoenen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.ddc670 Industrielle Fertigungde
dc.subject.otherlaser weldingen
dc.subject.othermetal mixingen
dc.subject.othermagnetic fielden
dc.subject.othermagnetohydrodynamicsen
dc.subject.othermulti-physical modellingen
dc.titleThe influence of magnetic field orientation on metal mixing in electromagnetic stirring enhanced wire feed laser beam weldingen
dc.typeArticleen
dc.type.versionacceptedVersionen
dcterms.bibliographicCitation.articlenumber117135en
dcterms.bibliographicCitation.doi10.1016/j.jmatprotec.2021.117135en
dcterms.bibliographicCitation.journaltitleJournal of Materials Processing Technologyen
dcterms.bibliographicCitation.originalpublishernameElsevieren
dcterms.bibliographicCitation.originalpublisherplaceAmsterdamen
dcterms.bibliographicCitation.volume294en
tub.accessrights.dnbdomain*
tub.affiliationFak. 5 Verkehrs- und Maschinensysteme::Inst. Werkzeugmaschinen und Fabrikbetrieb::FG Verfahren und Technologien für hochbeanspruchte Schweißverbindungende
tub.affiliation.facultyFak. 5 Verkehrs- und Maschinensystemede
tub.affiliation.groupFG Verfahren und Technologien für hochbeanspruchte Schweißverbindungende
tub.affiliation.instituteInst. Werkzeugmaschinen und Fabrikbetriebde
tub.publisher.universityorinstitutionTechnische Universität Berlinen

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