Joint punching and frequency effects on practical magnetic characteristics of electrical steels for high-speed machines

Kedous-Lebouc, A.; Messal, Oualid; Youmssi, André

doi:10.1016/j.jmmm.2016.10.150

Cited by 19 publications

(8 citation statements)

References 10 publications

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“…Understanding the magnetization process in non-oriented (NO) Fe-Si sheets is basic to the improvement of the performances of the electrical machines and the efficient conversion of the huge amount of energy fluxing through their magnetic cores worldwide [1,2]. Sheet cutting is a critical step in core manufacturing by fully processed NO steels, because the induced strain deteriorates the soft magnetic response of the material [3,4].…”

Section: Introductionmentioning

confidence: 99%

Influence of mechanical and water-jet cutting on the dynamic magnetic properties of NO Fe-Si steels

Paltanea

Păltânea

Ferrara

et al. 2020

Journal of Magnetism and Magnetic Materials

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Section: Introductionmentioning

confidence: 99%

Influence of mechanical and water-jet cutting on the dynamic magnetic properties of NO Fe-Si steels

Paltanea

Păltânea

Ferrara

et al. 2020

Journal of Magnetism and Magnetic Materials

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“…The subject of work hardening by cutting has indeed attracted substantial efforts in the literature in recent years. These are investigations having a predominant phenomenological character [15][16][17][18][19][20][21][22]. They aim, on the one hand, at determining the extent of the structural damage, the residual stress, and the induction profile across the sample width using, in some cases, neutron grating interferometry.…”

Section: Introductionmentioning

confidence: 99%

Correlation between Magnetic Properties and Chemical Composition of Non-Oriented Electrical Steels Cut through Different Technologies

et al. 2020

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Due to worldwide regulations on electric motor manufacturing, the energy efficiency of these devices has to be constantly improved. A solution may reside in the fact that high quality materials and adequate cutting technologies should be carefully chosen. The magnetic properties of non-oriented electrical steels are affected by the cutting methods, through induced plastic, and thermal stresses. There is also an important correlation between chemical composition and different magnetic properties. In this paper, we analyze different industrial grades of non-oriented electrical steels, used in electrical machines’ core manufacturing as M800-65A, M800-50A, M400-65A, M400-50A, M300-35A, and NO20. The influence of the cutting methods on the normal magnetization curve, total energy loss and its components, and relative magnetic permeability is investigated in alternating currents using a laboratory single sheet tester. The chemical composition and grain size influence are analyzed and correlated with the magnetic properties. Special attention is devoted to the influence of the increased cutting perimeter on the energy losses and to the way it relates to each chemical alloy constituent. The final decision in what concerns the choice of the proper magnetic material and the specific cutting technology for the motor magnetic cores is imposed by the desired efficiency class and the specific industrial applications.

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“…It significantly reduces permeability and increases losses. Although they are less traumatic than punching [17,18], these cutting methods degrade the materials significantly.…”

Section: Characterization Resultsmentioning

confidence: 99%

An analysis of power losses in nanocrystalline and thin-gauge non-oriented SiFe materials for application to high-speed electrical machines

Fassenet

Arbenz

et al. 2019

Eur. Phys. J. Appl. Phys.

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In this paper, the potential of thin sheet SiFe NO20 and nanocrystalline materials for the realization of the magnetic circuit of high-speed machines is analyzed in a complete procedure. Firstly, intrinsic properties of materials are precisely characterized. Next, the original and a modified model of Bertotti are applied for the modeling of power losses. These models are then used to predict losses in a simplified test bench which simulates the magnetic core of a real machine. FEM simulations in Altair FLUX 2D and experimental measurements are respectively carried out and results obtained show a good agreement leading to the confirmation of the potential of materials and the validation of the realized procedure.

show abstract

Joint punching and frequency effects on practical magnetic characteristics of electrical steels for high-speed machines

Cited by 19 publications

References 10 publications

Influence of mechanical and water-jet cutting on the dynamic magnetic properties of NO Fe-Si steels

Influence of mechanical and water-jet cutting on the dynamic magnetic properties of NO Fe-Si steels

Correlation between Magnetic Properties and Chemical Composition of Non-Oriented Electrical Steels Cut through Different Technologies

An analysis of power losses in nanocrystalline and thin-gauge non-oriented SiFe materials for application to high-speed electrical machines

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