Effect of laser cutting on microstructure and on magnetic properties of grain non-oriented electrical steels

Non-oriented electrical steels have been cut with two different techniques, the laser cutting and the mechanical cutting. In order to investigate the effect of the first technique on magnetic properties, different cutting parameters have been tested. Despite this, the best magnetic properties have b...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2003, Vol.256 (1), p.20-31
Main Authors: Belhadj, A, Baudouin, P, Breaban, F, Deffontaine, A, Dewulf, M, Houbaert, Y
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Cutting
Electrical and magnetic properties (related to treatment conditions)
Exact sciences and technology
Fe and its alloys
Heat affected zone
Laser
Magnetic properties and materials
Materials science
Microstructure
Non-oriented electrical steels
Physics
Studies of specific magnetic materials
Total losses
Treatment of materials and its effects on microstructure and properties
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Summary:Non-oriented electrical steels have been cut with two different techniques, the laser cutting and the mechanical cutting. In order to investigate the effect of the first technique on magnetic properties, different cutting parameters have been tested. Despite this, the best magnetic properties have been obtained after mechanical cutting. The laser cutting causes a coercive field increase and a permeability drop. Due to thermal effect, internal stress seems to be the main process drawback. No correlation between the heat affected zone and the magnetic properties has been found.
ISSN:0304-8853
DOI:10.1016/S0304-8853(01)00937-4