Direct-write 3D printing of NdFeB bonded magnets

Compton, Brett Gibson; Kemp, James William; Novikov, Timofei V.; Pack, Robert Cody; Nlebedim, Cajetan I.; Duty, Chad Edward; Rios, Orlando; Paranthaman, M. Parans

doi:10.1080/10426914.2016.1221097

Title: Direct-write 3D printing of NdFeB bonded magnets

Journal Article · Wed Aug 17 00:00:00 EDT 2016 · Materials and Manufacturing Processes

DOI:https://doi.org/10.1080/10426914.2016.1221097· OSTI ID:1342934

Compton, Brett Gibson ^[1]; Kemp, James William ^[2]; Novikov, Timofei V. ^[1]; Pack, Robert Cody ^[3]; Nlebedim, Cajetan I. ^[4]; Duty, Chad Edward ^[1]; Rios, Orlando ^[5]; Paranthaman, M. Parans ^[2]

Univ. of Tennessee, Knoxville, TN (United States). Dept. of Mechanical, Aerospace, and Biomedical Engineering
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
Ames Lab., Ames, IA (United States). Critical Materials Inst.
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division

We report a method to fabricate Nd-Fe-B bonded magnets of complex shape via extrusion-based additive manufacturing (AM), also known as 3D-printing. We have successfully formulated a 3D-printable epoxy-based ink for direct-write AM with anisotropic MQA NdFeB magnet particles that can be deposited at room temperature. The new feedstocks contain up to 40 vol.% MQA anisotropic Nd-Fe-B magnet particles, and they are shown to remain uniformly dispersed in the thermoset matrix throughout the deposition process. Ring, bar, and horseshoe-type 3D magnet structures were printed and cured in air at 100°C without degrading the magnetic properties. Lastly, this study provides a new pathway for fabricating Nd-Fe-B bonded magnets with complex geometry at low temperature, and presents new opportunities for fabricating multifunctional hybrid structures and devices.

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Research Organization:: Ames Lab., Ames, IA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1342934

Alternate ID(s):: OSTI ID: 1408633

Report Number(s):: IS-J-9070

Journal Information:: Materials and Manufacturing Processes, Vol. 33, Issue 1; Conference: Direct-write 3D printing of NdFeB bonded magnets; ISSN 1042-6914

Publisher:: Taylor & FrancisCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 52 works

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Electrical and Mechanical Properties of 3D-Printed Graphene-Reinforced Epoxy Compton, Brett G.; Hmeidat, Nadim S.; Pack, Robert C. JOM, Vol. 70, Issue 3 https://doi.org/10.1007/s11837-017-2707-x	journal	December 2017
A fast finite-difference algorithm for topology optimization of permanent magnets Abert, Claas; Huber, Christian; Bruckner, Florian Journal of Applied Physics, Vol. 122, Issue 11 https://doi.org/10.1063/1.4998532	journal	September 2017
Rotational 3D printing of damage-tolerant composites with programmable mechanics Raney, Jordan R.; Compton, Brett G.; Mueller, Jochen Proceedings of the National Academy of Sciences, Vol. 115, Issue 6 https://doi.org/10.1073/pnas.1715157115	journal	January 2018
Production of complex shape magnets using additive manufacturing: A state-of-the-art analysis Silva, Thiago Felipe Vieira; Stoppa, Marcelo Henrique Journal of Thermoplastic Composite Materials https://doi.org/10.1177/0892705719886894	journal	November 2019
3D Printing of Functional Assemblies with Integrated Polymer-Bonded Magnets Demonstrated with a Prototype of a Rotary Blood Pump von Petersdorff-Campen, Kai; Hauswirth, Yannick; Carpenter, Julia Applied Sciences, Vol. 8, Issue 8 https://doi.org/10.3390/app8081275	journal	August 2018
Development and Characterization of Stable Polymer Formulations for Manufacturing Magnetic Composites Nagarajan, Balakrishnan; Kamkar, Milad; Schoen, Martin A. W. Journal of Manufacturing and Materials Processing, Vol. 4, Issue 1 https://doi.org/10.3390/jmmp4010004	journal	January 2020
3D printing of functional assemblies with integrated polymer-bonded magnets demonstrated with a prototype of a rotary blood pump Von Petersdorff-Campen, Kai; Hauswirth, Yannick; Carpenter, Julia MDPI https://doi.org/10.21256/zhaw-4693	text	January 2018
Rotational 3D printing of damage-tolerant composites with programmable mechanics Raney, Jordan R.; Compton, Brett G.; Müller, Jochen ETH Zurich https://doi.org/10.3929/ethz-b-000239312	text	January 2018
3D Printing of Functional Assemblies with Integrated Polymer-Bonded Magnets Demonstrated with a Prototype of a Rotary Blood Pump Von Petersdorff-Campen, Kai; Hauswirth, Yannick; Carpenter, Julia ETH Zurich https://doi.org/10.3929/ethz-b-000280387	text	January 2018

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3D printing
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magnetic properties
NdFeB

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