High-coercivity NdFeB Printed Magnets With Laser Powder Bed Fusion Method

Olivier Tosoni; Elisa Borges Mendonça; Joni Reijonen; Atte Antikainen; Lukas Schäfer; Stefan Riegg

High-coercivity NdFeB Printed Magnets With Laser Powder Bed Fusion Method

Olivier Tosoni (Corresponding author), Elisa Borges Mendonça, Joni Reijonen, Atte Antikainen, Lukas Schäfer, Stefan Riegg

BA5601 Advanced manufacturing technologies

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

NdFeB permanent magnets are key components for the energy transition and the electrification of transportation, which causes their demand to grow at high pace. Yet, the supply risk for rare earth metals motivates the industry to look for an efficient use of magnets. Designing systems with complex-shaped magnets can help reducing the magnet use if accompanied by the development of net-shape processes. Powder Bed Fusion using Laser Beam of NdFeB has been studied since 2016 as a way to produce complex-shaped dense parts without any binder; most of the works are based on a commercial Nd-lean spherical powder. In the present work, a close-to-industrial process route was developed in order to produce a narrow-distributed 40-μm Nd-Fe-B powder with a composition close to the usual sintered magnet grades. This powder was used to additively manufacture parts and study the impact of changing the laser scanning strategy on the magnetic properties.

Original language	English
Title of host publication	World PM2022 Congress Proceedings
Publisher	European Powder Metallurgy Association (EPMA)
ISBN (Electronic)	978-1-899072-55-2
Publication status	Published - 10 Oct 2022
MoE publication type	A4 Article in a conference publication
Event	World PM2022 Congress & Exhibition - Lyon, France Duration: 9 Oct 2022 → 13 Oct 2022

Conference

Conference	World PM2022 Congress & Exhibition
Country/Territory	France
City	Lyon
Period	9/10/22 → 13/10/22

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "High-coercivity NdFeB Printed Magnets With Laser Powder Bed Fusion Method",

abstract = "NdFeB permanent magnets are key components for the energy transition and the electrification of transportation, which causes their demand to grow at high pace. Yet, the supply risk for rare earth metals motivates the industry to look for an efficient use of magnets. Designing systems with complex-shaped magnets can help reducing the magnet use if accompanied by the development of net-shape processes. Powder Bed Fusion using Laser Beam of NdFeB has been studied since 2016 as a way to produce complex-shaped dense parts without any binder; most of the works are based on a commercial Nd-lean spherical powder. In the present work, a close-to-industrial process route was developed in order to produce a narrow-distributed 40-μm Nd-Fe-B powder with a composition close to the usual sintered magnet grades. This powder was used to additively manufacture parts and study the impact of changing the laser scanning strategy on the magnetic properties.",

author = "Olivier Tosoni and {Borges Mendon{\c c}a}, Elisa and Joni Reijonen and Atte Antikainen and Lukas Sch{\"a}fer and Stefan Riegg",

year = "2022",

month = oct,

day = "10",

language = "English",

booktitle = "World PM2022 Congress Proceedings",

publisher = "European Powder Metallurgy Association (EPMA)",

address = "United Kingdom",

note = "World PM2022 Congress & Exhibition ; Conference date: 09-10-2022 Through 13-10-2022",

}

High-coercivity NdFeB Printed Magnets With Laser Powder Bed Fusion Method. / Tosoni, Olivier (Corresponding author); Borges Mendonça, Elisa; Reijonen, Joni et al.
World PM2022 Congress Proceedings. European Powder Metallurgy Association (EPMA), 2022.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - High-coercivity NdFeB Printed Magnets With Laser Powder Bed Fusion Method

AU - Tosoni, Olivier

AU - Borges Mendonça, Elisa

AU - Reijonen, Joni

AU - Antikainen, Atte

AU - Schäfer, Lukas

AU - Riegg, Stefan

PY - 2022/10/10

Y1 - 2022/10/10

N2 - NdFeB permanent magnets are key components for the energy transition and the electrification of transportation, which causes their demand to grow at high pace. Yet, the supply risk for rare earth metals motivates the industry to look for an efficient use of magnets. Designing systems with complex-shaped magnets can help reducing the magnet use if accompanied by the development of net-shape processes. Powder Bed Fusion using Laser Beam of NdFeB has been studied since 2016 as a way to produce complex-shaped dense parts without any binder; most of the works are based on a commercial Nd-lean spherical powder. In the present work, a close-to-industrial process route was developed in order to produce a narrow-distributed 40-μm Nd-Fe-B powder with a composition close to the usual sintered magnet grades. This powder was used to additively manufacture parts and study the impact of changing the laser scanning strategy on the magnetic properties.

AB - NdFeB permanent magnets are key components for the energy transition and the electrification of transportation, which causes their demand to grow at high pace. Yet, the supply risk for rare earth metals motivates the industry to look for an efficient use of magnets. Designing systems with complex-shaped magnets can help reducing the magnet use if accompanied by the development of net-shape processes. Powder Bed Fusion using Laser Beam of NdFeB has been studied since 2016 as a way to produce complex-shaped dense parts without any binder; most of the works are based on a commercial Nd-lean spherical powder. In the present work, a close-to-industrial process route was developed in order to produce a narrow-distributed 40-μm Nd-Fe-B powder with a composition close to the usual sintered magnet grades. This powder was used to additively manufacture parts and study the impact of changing the laser scanning strategy on the magnetic properties.

M3 - Conference article in proceedings

BT - World PM2022 Congress Proceedings

PB - European Powder Metallurgy Association (EPMA)

T2 - World PM2022 Congress & Exhibition

Y2 - 9 October 2022 through 13 October 2022

ER -

High-coercivity NdFeB Printed Magnets With Laser Powder Bed Fusion Method

Abstract

Conference

UN SDGs

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Cite this