Electrophotographic Multilayer Powder Pattern Deposition for Additive Manufacturing

Stichel T, Brachmann C, Raths M, Dechet M, Schmidt J, Peukert W, Frick T, Roth S (2019)

Publication Type: Journal article

Publication year: 2019

Journal

JOM Journal of the Minerals, Metals and Materials Society Springer Verlag (Germany)

DOI: 10.1007/s11837-019-03965-z

Abstract

The use of electrophotographic polymer powder transfer for the preparation of patterned powder layers is discussed with respect to a possible multimaterial application in powder bed-based additive manufacturing technologies such as selective laser sintering (SLS). Therefore, an experimental setup with a two-chamber design was realized, enabling the electrophotographic transfer of SLS powder materials at typical process conditions. The powder development (pick-up) step was investigated thoroughly for different powder materials to provide deep understanding of the underlying electrostatic effects and the influence of distinct powder properties. While using two different development modes, differences in the development results were correlated to differences in their particle size distribution, bulk density, and relative permittivity. Moreover, a new strategy was invented, allowing the residual electrophotographic powder deposition to be in general independent from the already produced part height. This is known to be a huge challenge but is mandatory for the buildup of three-dimensional multimaterial components.

Authors with CRIS profile

Maximilian Dechet Sonderforschungsbereich 814/3 Additive Fertigung Jochen Schmidt Sonderforschungsbereich 814/3 Additive Fertigung Wolfgang Peukert Lehrstuhl für Partikelsynthese (LFG)

Involved external institutions

Bayerisches Laserzentrum gemeinnützige Forschungsgesellschaft mbH (BLZ) DE Germany (DE)

How to cite

APA:

Stichel, T., Brachmann, C., Raths, M., Dechet, M., Schmidt, J., Peukert, W.,... Roth, S. (2019). Electrophotographic Multilayer Powder Pattern Deposition for Additive Manufacturing. JOM Journal of the Minerals, Metals and Materials Society. https://doi.org/10.1007/s11837-019-03965-z

MLA:

Stichel, Thomas, et al. "Electrophotographic Multilayer Powder Pattern Deposition for Additive Manufacturing." JOM Journal of the Minerals, Metals and Materials Society (2019).

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