Recycling of NdFeB Magnets by HPMS and Metal Injection Moulding
Dr. Simone Schuster, Research & Development, MIMplus Technologies GmbH & Co. KG
In this session, a novel manufacturing technique for producing complex shaped sintered NdFeB magnets from end-of-life (EOL) magnets is presented. EOL magnets are reprocessed by hydrogen processing of magnet scrap (HPMS) and metal injection moulding (MIM). The magnet powder and organic binder are compounded to a feedstock, which is injected into a mould tool. The so called green part undergoes a debinding and sintering step. After sintering a fully metallic magnet is received. These MIM magnets are combining complex geometries and high energy products. Magnetic properties close to the starting material can be achieved with this method.
Simone Schuster studied mechanical engineering at Karlsruhe Institute of Technology (KIT) and did her PhD degree in the field of material science and engineering. Since 2018 Simone is working in the R&D department of MIMplus Technologies dealing with metal injection moulding, sintering optimization, additive manufacturing and NdFeB magnets. She is also part of the ERA-MIM 2 project “MaXycle – A novel circular economy for sustainable RE-based magnets” co-funded by the European Union.