Abstract
Additive manufacturing (AM) or 3D printing is well known for producing arbitrary shaped parts without any tooling required, offering a promising alternative to the conventional injection molding method to fabricate near-net-shaped magnets. In this viewpoint, we compare two 3D printing technologies, namely binder jetting and material extrusion, to determine their applicability in the fabrication of Nd-Fe-B bonded magnets. Prospects and challenges of these state-of-the-art technologies for large-scale industrial applications will be discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 100-104 |
| Number of pages | 5 |
| Journal | Scripta Materialia |
| Volume | 135 |
| DOIs | |
| State | Published - Jul 1 2017 |
Funding
This work was supported by the Critical Materials Institute, an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office. Access to the MDF facilities and use of additive instrument time and labor are supported by the MDF Tech Collaborations between ORNL and Magnet Applications Inc./Tru Design LLC. Thanks are due to John Ormerod and Robert Fredette from Magnet Applications for supplying nylon magnet composite pellets for 3D printing. Thanks are also due to Rick Spears from Tru Design for help with finishing the 3D printed parts.
Keywords
- 3D printing
- Big Area Additive Manufacturing
- Binder jetting
- Bonded magnets
- NdFeB
