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Prospects of additive manufacturing of rare-earth and non-rare-earth permanent magnets

Popov, Vladimir and Koptyug, Andrey and Radulov, Iliya and Maccari, Fernando and Muller, Gary (2018):
Prospects of additive manufacturing of rare-earth and non-rare-earth permanent magnets.
In: Procedia Manufacturing, Elsevier Science Publishing, pp. 100-108, 21, ISSN 23519789,
DOI: 10.1016/j.promfg.2018.02.199,
[Online-Edition: https://doi.org/10.1016/j.promfg.2018.02.199],
[Article]

Abstract

Additive manufacturing (AM) or 3D-printing started as a prototyping technique in plastic has succeeded in metals for life safety applications as airspace and medical implants production. Today having advantages in fabricating products of desired shape, geometry, lightweight structures and required mechanical properties, 3D-printing faces a new challenge - AM of permanent magnets (PM). 3D-printing significantly simplifies manufacturing of net-shape bonded magnets, simplifies the new phase magnets prototyping, and also enables efficient use of rare earth (RE) elements [1]. The major development nowadays is performed by AM of bonded Nd-Fe-B using different binders/polymers [1, 2]. 3D printing technologies of non-RE magnets are not so widely represented [3]. The AM of RE-free PM, such as Al-Ni-Co [4] and MnAl(C) [5], is also developed, because of their great benefit of being non-RE, presenting advantages of AM technology and sufficient magnetic properties.

This work presents the state-of-the-art of 3D-printing of PM, including RE and RE-free, bonded and non-bonded magnets.

Prospects of electron beam melting (EBM) of non-rare-earth MnAl(C) are shown.

Item Type: Article
Erschienen: 2018
Creators: Popov, Vladimir and Koptyug, Andrey and Radulov, Iliya and Maccari, Fernando and Muller, Gary
Title: Prospects of additive manufacturing of rare-earth and non-rare-earth permanent magnets
Language: English
Abstract:

Additive manufacturing (AM) or 3D-printing started as a prototyping technique in plastic has succeeded in metals for life safety applications as airspace and medical implants production. Today having advantages in fabricating products of desired shape, geometry, lightweight structures and required mechanical properties, 3D-printing faces a new challenge - AM of permanent magnets (PM). 3D-printing significantly simplifies manufacturing of net-shape bonded magnets, simplifies the new phase magnets prototyping, and also enables efficient use of rare earth (RE) elements [1]. The major development nowadays is performed by AM of bonded Nd-Fe-B using different binders/polymers [1, 2]. 3D printing technologies of non-RE magnets are not so widely represented [3]. The AM of RE-free PM, such as Al-Ni-Co [4] and MnAl(C) [5], is also developed, because of their great benefit of being non-RE, presenting advantages of AM technology and sufficient magnetic properties.

This work presents the state-of-the-art of 3D-printing of PM, including RE and RE-free, bonded and non-bonded magnets.

Prospects of electron beam melting (EBM) of non-rare-earth MnAl(C) are shown.

Journal or Publication Title: Procedia Manufacturing
Volume: 21
Publisher: Elsevier Science Publishing
Uncontrolled Keywords: 3D-Printing, addititve manufacturing, permanent magnets, rare-earth magnets
Divisions: 11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Functional Materials
11 Department of Materials and Earth Sciences
Date Deposited: 21 Mar 2018 10:01
DOI: 10.1016/j.promfg.2018.02.199
Official URL: https://doi.org/10.1016/j.promfg.2018.02.199
Funders: This work was supported by the European Union’s Horizon 2020 NMBP23 -2015 research No 686056 (NOVAMAG ).
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