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Local electromagnetic investigations on electrical steel FeSi 3% via 3MA micromagnetic NDT system

: Gabi, Yasmine; Böttger, David; Straß, Benjamin; Wolter, Bernd; Conrad, Christian; Leinenbach, Frank

Merck, Peter (Ed.) ; European Federation for Non-Destructive Testing -EFNDT-:
12th European Conference on Non-Destructive Testing, ECNDT 2018. Proceedings : Gothenburg, Sweden, 11-15 June 2018; CD-ROM
Gothenburg: Sweden MEETX AB, 2018
ISBN: 978-91-639-6217-2
Paper ID-ECNDT-0500-2018, 6 pp.
European Conference on Non-Destructive Testing (ECNDT) <12, 2018, Gothenburg>
Conference Paper
Fraunhofer IZFP ()
magnetic testing; NDT

Fraunhofer IZFP has provided a robust solution for a local cutting edge evaluation, based on four local micromagnetic methods: harmonic analysis, Barkhausen noise, incremental permeability and eddy current. The correlation between measuring results and mechanical properties is investigated via a robust finite element code by studying the magnetic behaviour of electrical steel. The ferromagnetic material behaviour in quasi-static domain is described by the analytical hysteresis formula of Jiles-Atherton. The classical and excess magnetic field contributions are represented by the Berttoti model formula. The complete system: 3MA NDT device and FeSi 3% material are simulated via Flux FEM software (development version). First validations are performed by comparing simulated signatures to experimental ones under similar measuring conditions. The cutting edge is evaluated by comparing two different cutting tool: sharp and blunt. Meso-macroscopic magnetic parameters will be correlated to the cutting tool quality.