Effects on the distortion of Inconel 718 components along a hybrid laser-based additive manufacturing process chain using laser powder bed fusion and laser metal deposition

dc.contributor.authorUhlmann, Eckart
dc.contributor.authorDüchting, Jan
dc.contributor.authorPetrat, Torsten
dc.contributor.authorKrohmer, Erwin
dc.contributor.authorGraf, Benjamin
dc.contributor.authorRethmeier, Michael
dc.date.accessioned2021-03-31T06:44:53Z
dc.date.available2021-03-31T06:44:53Z
dc.date.issued2021-02-17
dc.description.abstractThe combination of laser powder bed fusion (LPBF), known for its geometrical freedom and accuracy, and the nozzle-based laser metal deposition process (LMD), known for its high build-up rates, has great potential to reduce the additive manufacturing times for large metallic parts. For the industrial application of the LPBF-LMD hybrid process chain, it is necessary to investigate the influence of the LMD process on the LPBF substrate. In addition, the build plate material also has a significant impact on the occurrence of distortion along the additive manufacturing process chain. In the literature, steel build plates are often used in laser-based additive manufacturing processes of Inconel 718, since a good metallurgical bonding can be assured whilst reducing costs in the production and restoration of the build plates. This paper examines the distortion caused by LMD material deposition and the influence of the build plate material along the hybrid additive manufacturing process chain. Twin cantilevers are manufactured by LPBF and an additional layer is subsequently deposited with LMD. The distortion is measured in the as-built condition as well as after heat treatment. The effect of different LMD hatch strategies on the distortion is determined. The experiments are conducted using the nickel-base alloy Inconel 718. The results show a significant influence of LMD path strategies on distortion, with shorter tool paths leading to less distortion. The remaining distortion after heat treatment is considerably dependent on the material of the build plate.en
dc.description.sponsorshipTU Berlin, Open-Access-Mittel – 2021en
dc.description.sponsorshipDFG, 378970463, Untersuchung der kombinierten Prozesskette auf Basis von SLM und LPAen
dc.identifier.eissn2363-9520
dc.identifier.issn2363-9512
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/12912
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-11713
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitende
dc.subject.otherlaser powder bed fusionen
dc.subject.otherdirected energy depositionen
dc.subject.otherlaser metal depositionen
dc.subject.otherdistortionen
dc.subject.otherheat treatmenten
dc.titleEffects on the distortion of Inconel 718 components along a hybrid laser-based additive manufacturing process chain using laser powder bed fusion and laser metal depositionen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1007/s40964-021-00171-9en
dcterms.bibliographicCitation.journaltitleProgress in Additive Manufacturingen
dcterms.bibliographicCitation.originalpublishernameSpringeren
dcterms.bibliographicCitation.originalpublisherplaceHeidelbergen
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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