Study on the transition behavior of the bulging effect during deep penetration laser beam welding

dc.contributor.authorArtinov, Antoni
dc.contributor.authorMeng, Xiangmeng
dc.contributor.authorBachmann, Marcel
dc.contributor.authorRethmeier, Michael
dc.date.accessioned2022-04-06T14:35:46Z
dc.date.available2022-04-06T14:35:46Z
dc.date.issued2021-12-09
dc.description.abstractThe present work is devoted to the study of the transition behavior of the recently confirmed widening of the weld pool, known as the bulging effect, during high-power deep penetration laser beam welding of thick unalloyed steel sheets. A three-dimensional transient multi-physics numerical model is developed, allowing for the prediction of the bulge formation and the study of its temporal behavior. The model is generalized to account automatically for the transition from partial to complete penetration. Several experimental measurements and observations, such as drilling period, weld pool length, temperature, efficiency, and metallographic cross-sections are used to verify the model and assure the plausibility of the numerical results. The analysis of the calculated temperature and velocity distributions, as well as the evolution of the keyhole geometry, shows that the formation of a bulging region strongly depends on the penetration depth of the weld. Based on the numerical results, the bulge is found to occur transiently, having its transition from a slight bulge to a fully developed bulging between penetration depths of 6 mm and 9 mm, respectively.en
dc.description.sponsorshipDFG, 411393804, Experimentelle und numerische Untersuchung der Entstehungsmechanismen des Bulgings und dessen Einfluss auf die Bildung von Mittelrippendefekten beim Hochleistungslaserstrahlschweißen niedriglegierter Stähle hoher Blechdickeen
dc.description.sponsorshipDFG, 416014189, Simulation des Einflusses der elektromagnetisch unterstützten Durchmischung beim Laserstrahlschweißen dickwandiger Stahlbauteile mit Zusatzmaterialen
dc.identifier.eissn1879-2189
dc.identifier.issn0017-9310
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/16686
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-15463
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitende
dc.subject.otherlaser beam weldingen
dc.subject.otherdeep penetrationen
dc.subject.otherbulge formationen
dc.subject.othernumerical modelingen
dc.titleStudy on the transition behavior of the bulging effect during deep penetration laser beam weldingen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber122171en
dcterms.bibliographicCitation.doi10.1016/j.ijheatmasstransfer.2021.122171en
dcterms.bibliographicCitation.journaltitleInternational Journal of Heat and Mass Transferen
dcterms.bibliographicCitation.originalpublishernameElsevieren
dcterms.bibliographicCitation.originalpublisherplaceAmsterdamen
dcterms.bibliographicCitation.volume184en
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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