Topology optimized and 3D printed polymer-bonded permanent magnets for a predefined external field

Christian Huber (Corresponding author), C. Abert, F. Bruckner, C. Pfaff, J. Kriwet, M. Groenefeld, I. Teliban, C. Vogler, Dieter Suess

Publications: Contribution to journalArticlePeer Reviewed

Abstract

Topology optimization offers great opportunities to design permanent magnetic systems that have specific external field characteristics. Additive manufacturing of polymer-bonded magnets with an end-user 3D printer can be used to manufacture permanent magnets with structures that had been difficult or impossible to manufacture previously. This work combines these two powerful methods to design and manufacture permanent magnetic systems with specific properties. The topology optimization framework is simple, fast, and accurate. It can also be used for the reverse engineering of permanent magnets in order to find the topology from field measurements. Furthermore, a magnetic system that generates a linear external field above the magnet is presented. With a volume constraint, the amount of magnetic material can be minimized without losing performance. Simulations and measurements of the printed systems show very good agreement.
Original languageEnglish
Article number053904
Number of pages7
JournalJournal of Applied Physics
Volume122
Issue number5
DOIs
Publication statusPublished - 7 Aug 2017

Austrian Fields of Science 2012

  • 103018 Materials physics

Keywords

  • NDFEB MAGNETS
  • SYSTEMS
  • DESIGN

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