Comparison of process characteristics and resulting microstructures of maraging steel 1.2709 in Additive Manufacturing via Laser Metal Deposition and Laser Beam Melting in Powder Bed

Beitrag bei einer Tagung
(Konferenzbeitrag)


Details zur Publikation

Autorinnen und Autoren: Karg M, Hentschel O, Ahuja B, Junker D, Haßler U, Schäperkötter C, Haimerl A, Arnet H, Merklein M, Schmidt M
Herausgeber: Igor Drstvenšek, Dietmar Drummer, Michael Schmidt
Verlag: Interesansa - zavod
Verlagsort: Ljubljana
Jahr der Veröffentlichung: 2016
Seitenbereich: 39-50
ISBN: 978-961-285-537-6
Sprache: Englisch


Abstract

Laser Metal Deposition (LMD) with Blown Powder and Laser Beam Melting (LBM) in Powder Bed are two Additive Manufacturing technologies that can produce high-quality metal parts in principle. Both technologies are based on melting of fine metal powders employing highintensity laser radiation. Apart from the obvious differences defined by system technology, LMD and LBM differ largely in fundamental boundary conditions of laser-materialinteraction. Process conditions in LMD and LBM and corresponding microstructures were compared on the example of martensitic aging steel 1.2709. This material has been one of the most popular ones in industrial use with LBM for about a decade, typically processed with laser powers below 400 W in continuous wave (cw) mode. With
LMD, 1.2709 has not been commonly used so far. LMD typically engages higher cw laser powers of around 1000 W, larger laser spot diameters and smaller feed rates than LBM. Increased laser power kindles hopes for increased productivity, which is a key factor for economic viability. For a more comprehensive comparison, 1.2709 processed by LBM with 1000 W was also considered. Samples were analyzed metallographically, by computed x-ray tomography, hardness testing before and after heat treatment. Chemical compositions of powder and built samples were compared.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Ahuja, Bhrigu
Lehrstuhl für Photonische Technologien
Junker, Daniel
Lehrstuhl für Fertigungstechnologie
Karg, Michael
Lehrstuhl für Photonische Technologien
Merklein, Marion Prof. Dr.-Ing.
Lehrstuhl für Fertigungstechnologie
Schmidt, Michael Prof. Dr.-Ing.
Lehrstuhl für Photonische Technologien


Zusätzliche Organisationseinheit(en)
Zentralinstitut für Neue Materialien und Prozesstechnik
Erlangen Graduate School in Advanced Optical Technologies


Forschungsbereiche

Additive Fertigung
Lehrstuhl für Photonische Technologien
Neue Materialien und Prozesse
Forschungsschwerpunkt einer Fakultät: Technische Fakultät
Optische Technologien
Forschungsschwerpunkt einer Fakultät: Technische Fakultät


Zitierweisen

APA:
Karg, M., Hentschel, O., Ahuja, B., Junker, D., Haßler, U., Schäperkötter, C.,... Schmidt, M. (2016). Comparison of process characteristics and resulting microstructures of maraging steel 1.2709 in Additive Manufacturing via Laser Metal Deposition and Laser Beam Melting in Powder Bed. In Igor Drstvenšek, Dietmar Drummer, Michael Schmidt (Eds.), Proceedings of the 6th International Conference on Additive Technologies (pp. 39-50). Nürnberg, DE: Ljubljana: Interesansa - zavod.

MLA:
Karg, Michael, et al. "Comparison of process characteristics and resulting microstructures of maraging steel 1.2709 in Additive Manufacturing via Laser Metal Deposition and Laser Beam Melting in Powder Bed." Proceedings of the 6th International Conference on Additive Technologies, Nürnberg Ed. Igor Drstvenšek, Dietmar Drummer, Michael Schmidt, Ljubljana: Interesansa - zavod, 2016. 39-50.

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Zuletzt aktualisiert 2019-06-08 um 16:39