Authors:
Merlin Thamm (1), Inge Lindemann-Geipel (1), Christoph Höhnel (1,2), Thomas Hutsch (1), Shufan Wang (3), Yuanbin Deng (3,4), Christoph Broeckmann (3,4), Thomas Wentzlik (5), Tobias Trupp (5), Thomas Weißgärber (1,2)
1- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Branch Lab Dresden, Germany
2- TUD Dresden University of Technology, Faculty Mechanical Engineering, Institute of Materials Science, Chair Powder Metallurgy, Germany
3- Institute of Applied Powder Metallurgy and Ceramics at RWTH Aachen e.V. (IAPK), Germany
4- Institute for Materials Applications in Mechanical Engineering (IWM), RWTH Aachen University, Germany
5- Magnetec GmbH, Germany
Abstract:
Within the public founded project “NanoKompakt”, the powder of initial amorphous soft magnetic alloy Vitroperm (Fe73.6Si15.5B6.9Cu1.0Nb3.0) is compacted to nanocrystalline components by FAST/SPS. The aim is to manufacture industrially relevant components such as E-cores that cannot be produced from wounded ribbon. The increased mechanical stability allows for omitting a polymer case, which increases the possible application temperature. Firstly, small toroidal cores were compacted. A high permeability of 20 000 and a low coercivity of 3 A/m are achieved. Based on the thermal and electrical properties of the compacted toroidal cores, a larger pressing tool is also designed and optimized by simulation. The simulation is necessary because the temperature range for compaction is only a few Kelvin wide and the precipitation of hard magnetic phases must be prevented. In the second step, E-cores are cut from compacted slices and analyzed.
DOI:
https://doi.org/10.59499/EP246279398
