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Design and experimental investigation of an additive manufactured compact drive

: Matthiesen, Gunnar; Merget, Daniel; Pietrzyk, Tobias; Ziegler, Stephan; Schleifenbaum, Johannes Henrich; Schmitz, Katharina

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12th International Fluid Power Conference (12. IFK). Vol. 1 - Symposium. Online resource : October 12 – 14, 2020 in Dresden
Dresden: Dresdner Verein zur Förderung der Fluidtechnik, 2020
DOI: 10.25368/2020.6
URN: urn:nbn:de:bsz:14-qucosa2-709160
Internationales Fluidtechnisches Kolloquium (IFK) <12, 2020, Online>
International Fluid Power Conference <12, 2020, Online>
Conference Paper, Electronic Publication
Fraunhofer ILT ()
Additive Manufacturing; Laser Powder Bed Fusion; Internal gear pump; Electrohydraulic power pack; Innenzahnradpumpe

In recent years, additive manufacturing (AM) has become one of the most revolutionary and promising technologies in manufacturing. The process of making a product layer by layer is also often referred to as 3D printing. Once employed purely for prototyping, AM is now increasingly used for small series production, for example in aerospace applications. The paper starts with a motivation for AM in hydraulic applications and the development of an AM internal gear pump. For a better understanding of the manufacturing process, a brief introduction to AM highlighting the advantages and challenges is given. The AM internal gear pump is part of an electrohydraulic power pack, which is used to power an electrohydraulic actuator (EHA). The power pack contains all necessary peripherals to realise the hydraulic system of the EHA. The AM process allows for new design possibilities, but the process differs strongly compared to subtractive manufacturing processes and therefore is outlined here. The paper concludes by presenting measurement results of the AM internal gear pump.