Scaling up colloidal surface additivation of polymer powders for laser powder bed fusion

Hupfeld T, Doñate-Buendía C, Krause M, Sommereyns A, Wegner A, Sinnemann T, Schmidt M, Gökce B, Barcikowski S (2020)

Publication Type: Conference contribution

Publication year: 2020

Journal

Procedia CIRP Curran

Publisher: Elsevier B.V.

Book Volume: 94

Pages Range: 110-115

Conference Proceedings Title: Procedia CIRP

DOI: 10.1016/j.procir.2020.09.022

Abstract

Nanoadditivation of polymer materials has high potential to meet the needs of material modification for laser powder bed fusion (PBF-LB/P), e.g. by tuning optical or mechanical properties. Colloidal additivation of polymer powders has proven to avoid aggregation of nanofillers on the polymer surface during additivation. In our study, we demonstrate kg-scale, continuous colloidal surface additivation of polymer powders to generate sufficient amounts for PBF-LB/P process development and manufacturing of test specimens. Furthermore, colloidal additivation achieves a high surface coverage even at low wt% and allows PBF-LB/P with CO2 and diode lasers to form parts preserving the superior nanoparticle dispersion within TPU and PA12.

Authors with CRIS profile

Alexander Sommereyns Lehrstuhl für Photonische Technologien Michael Schmidt Lehrstuhl für Photonische Technologien

Additional Organisation(s)

Erlangen Graduate School in Advanced Optical Technologies

Involved external institutions

Universität Duisburg-Essen (UDE) DE Germany (DE) Fachhochschule Dortmund - University of Applied Sciences DE Germany (DE)

How to cite

APA:

Hupfeld, T., Doñate-Buendía, C., Krause, M., Sommereyns, A., Wegner, A., Sinnemann, T.,... Barcikowski, S. (2020). Scaling up colloidal surface additivation of polymer powders for laser powder bed fusion. In M. Schmidt, F. Vollertsen, E. Govekar (Eds.), Procedia CIRP (pp. 110-115). Elsevier B.V..

MLA:

Hupfeld, Tim, et al. "Scaling up colloidal surface additivation of polymer powders for laser powder bed fusion." Proceedings of the 11th CIRP Conference on Photonic Technologies, LANE 2020 Ed. M. Schmidt, F. Vollertsen, E. Govekar, Elsevier B.V., 2020. 110-115.

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