Net Shape 3D Printed NdFeB Permanent Magnet
By J. Jaćimović, F. Binda, L. Herrmann, F. Greuter, Jessica Genta, Micha Calvo, T. Tomše, Reinhard A. Simon. 2016
155 citations recorded by the source corpus.
For two decades, NdFeB based magnets have been a critical component in a range of electrical devices engaged in energy production and conversion. The magnet shape and the internal microstructure of the selected NdFeB grade govern their efficiency and size. However, stricter requirements on device efficiency call for better performing magnets preferably with novel functionality not achievable today. Here we use 3D metal printing by Selective Laser Melting to fabricate dense net shape permanent magnets based on NdFeB that exhibit high magnetic performance. Evidence is provided that the internal microstructure, not achievable by traditional manufacturing means, is the origin of the solid magnetic properties. The freedom in magnet body shape and size that ranges from the millimeter to tens of centimeter scale opens up a design freedom that could be a catalyzer for the next generation of electrical devices.
Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/3e2c736855356762544cbac7ba4d566a54dd3169
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In Materials Chemistry
Citations in the corpus
- Electrical resistivity of pure copper processed by medium-powered laser powder bed fusion additive manufacturing for use in electromagnetic applications (2019, background): “Researchers are investigating the use of laser powder bed fusion (LPBF) with soft magnetic materials such as silicon steel[1–3] and hard magnetic materials such as neodymium-based materials [4,5].”