Abstract
During the past years additive manufacturing (AM) has revolutionized the manufacturing world by enabling rapid generation of geometrically-intricate designs. However, up to now in laser and beam-based AM of polymers only single powder materials whether filled or pure plastics can be processed. One aim of the Collaborative Research Center 814 (CRC 814) – Additive Manufacturing is to establish new process technologies to produce multi-material polymer parts in AM. Therefore, two different strategies basing on Laser Sintering (LS) will be explored: On the one side, selective powder deposition technologies like vibrating nozzles or electrophotography are investigated, which enable to lay down different powders beside each other in one process. On the other side, a liquid reactive UV-curing thermoset is implemented into the LS process chamber. After curing of the UV-curing thermoset the powder beside the cured thermoset is molten by the use of the CO2 laser. Both strategies allow the generation of multi-material parts consisting of material regions with different functional properties.
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Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – Project-ID 61375930 – SFB 814, sub-project B7.
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Setter, R., Stichel, T., Schuffenhauer, T., Kopp, SP., Roth, S., Wudy, K. (2021). Additive Manufacturing of Multi-material Polymer Parts Within the Collaborative Research Center 814. In: Reisgen, U., Drummer, D., Marschall, H. (eds) Enhanced Material, Parts Optimization and Process Intensification. EMPOrIA 2020. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-70332-5_13
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DOI: https://doi.org/10.1007/978-3-030-70332-5_13
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