About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Magnetic Materials
|
Presentation Title |
Investigations into the Processing and Magnetic Properties of Nd-Fe-B Magnets Produced by Extrusion |
Author(s) |
Alexander Ruediger, Sven Gall, Sören Müller |
On-Site Speaker (Planned) |
Alexander Ruediger |
Abstract Scope |
Crystallographically and magnetically textured but dimensionally limited Nd-Fe-B permanent magnets fabricated by hot forming processes such as die-upsetting and backward extrusion have been extensively explored in the past.In contrast, the possibility of producing long magnetic profiles by extrusion has hardly been investigated. For this purpose, tools were designed which enable the processing of the common isotropic Nd-Fe-B powders produced in the melt spinning process in the loose, encapsulated and in the already hot-compacted, unencapsulated form. In both process variants, the powders were extruded into round profiles, whereby the extrusion temperature, ratio and speed were varied for the tests. This showed that Nd-Fe-B magnet material could be processed by extrusion using the chosen tool designs. In further experiments, the properties of the produced profiles were analyzed, and a magnetic anisotropy typical for hot forming of Nd-Fe-B material was also found for the extrusion process. |
Proceedings Inclusion? |
Planned: |
Keywords |
Magnetic Materials, Powder Materials, Shaping and Forming |