TY - JOUR A1 - Stichel, Thomas A1 - Brachmann, Clemens A1 - Raths, Max A1 - Dechet, Maximilian A. A1 - Schmidt, Jochen A1 - Peukert, Wolfgang A1 - Frick, Thomas A1 - Roth, Stephan T1 - Electrophotographic Multilayer Powder Pattern Deposition for Additive Manufacturing JF - JOM N2 - 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. Y1 - 2019 U6 - https://doi.org/10.1007/s11837-019-03965-z SN - 1047-4838 VL - 72 IS - 3 SP - 1366 EP - 1375 PB - Springer Science and Business Media LLC ER -