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arXiv · 1912.07374

3D printing of polymer-bonded anisotropic magnets in an external magnetic field and by a modified production process

Klaus Sonnleitner·Christian Huber·Iulian Teliban·Spomenka Kobe·Boris Saje·Daniel Kagerbauer·Michael Reissner·Christian Lengauer·Martin Groenefeld·Dieter Suess
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Abstract

The possibility of producing polymer-bonded magnets with the aid of additive processes, such as 3D printing, opens up a multitude of new areas of application. Almost any structures and prototypes can be produced cost-effectively in small quantities. Extending the 3D printing process allows the manufacturing of anisotropic magnetic structures by aligning the magnetic easy axis of ferromagnetic particles inside a paste-like compound material along an external magnetic field. This is achieved by two different approaches: First, the magnetic field for aligning the particles is provided by a permanent magnet. Secondly, the 3D printing process itselfs generates an anisotropic behavior of the structures. An inexpensive and customizable end-user fused filament fabrication 3D printer is used to print the magnetic samples. The magnetical properties of different magnetic anisotropic Sr ferrite and SmFeN materials are investigated and discussed.

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BibTeXRIS

Klaus Sonnleitner, Christian Huber, Iulian Teliban, Spomenka Kobe, Boris Saje, Daniel Kagerbauer, Michael Reissner, Christian Lengauer, Martin Groenefeld, Dieter Suess. 2019-12-16. 3D printing of polymer-bonded anisotropic magnets in an external magnetic field and by a modified production process. https://doi.org/10.1063/1.5142692

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