| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Sergeant, Peter
Ghent University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Impact of strand deposition and infill strategies on the properties of monolithic copper via material extrusion additive manufacturingcitations
- 2024Production and characterisation of filament-based Material Extrusion (MEX) additively manufactured copper partscitations
- 2023Evaluation of 3D-Printed Magnetic Materials For Additively-Manufactured Electrical Machinescitations
- 2023Process optimization and characterization of dense pure copper parts produced by paste-based 3D micro-extrusioncitations
- 2023Material Engineering of 3D-Printed Silicon Steel Alloys for the Next Generation of Electrical Machines and Sustainable Electromobilitycitations
- 2022Stress-dependent magnetic equivalent circuit for modeling welding effects in electrical steel laminationscitations
- 2020Magnetic properties of silicon steel after plastic deformationcitations
- 2018Synchronous reluctance machine : combined star-Delta Winding and rotor eccentricity
- 2017Performance comparison of conventional synchronous reluctance machines and PM-assisted types with combined star-delta windingcitations
- 2016Influence of stator slot openings on losses and torque in axial flux permanent magnet machinescitations
- 2015Comparison of motor stator teeth built of soft magnetic composite and laminated silicon steel sheets in an axial flux permanent magnet synchronous machinecitations
- 2015Synchronous reluctance motors performance based on different electrical steel gradescitations
- 2014Axial-flux PM machines with variable air gapcitations
- 2012Reducing the permanent magnet content in fractional-slot concentrated-windings permanent magnet synchronous machinescitations
- 2010Comparison of Nonoriented and Grain-Oriented Material in an Axial Flux Permanent-Magnet Machinecitations
Places of action
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article
Magnetic properties of silicon steel after plastic deformation
Abstract
The energy efficiency of electric machines can be improved by optimizing their manufacturing process. During the manufacturing of ferromagnetic cores, silicon steel sheets are cut and stacked. This process introduces large stresses near cutting edges. The steel near cutting edges is in a plastically deformed stress state without external mechanical load. The magnetic properties of the steel in this stress state are investigated using a custom magnetomechanical measurement setup, stress strain measurements, electrical resistance measurements, and transmission electron microscopic (TEM) measurements. Analysis of the core energy losses is done by means of the loss separation technique. The silicon steel used in this paper is non-grain oriented (NGO) steel grade M270-35A. Three differently cut sets of M270-35A are investigated, which differ in the direction they are cut with respect to the rolling direction. The effect of sample deformation was measured—both before and after mechanical load release—on the magnetization curve and total core energy losses. It is known that the magnetic properties dramatically degrade with increasing sample deformation under mechanical load. In this paper, it was found that when the mechanical load is released, the magnetic properties degrade even further. Loss separation analysis has shown that the hysteresis loss is the main contributor to the additional core losses due to sample deformation. Releasing the mechanical load increased the hysteresis loss up to 270% at 10.4% pre-release strain. At this level of strain, the relative magnetic permeability decreased up to 45% after mechanical load release. Manufacturing processes that introduce plastic deformation are detrimental to the local magnetic material properties.