European Journal of Electrical Engineering – n° 5-6, 413-423 Experimental evaluation of the punching impact on the dynamic magnetic performances of M330-35A SiFe steel

European Journal of Electrical Engineering – n° 5-6, 413-423 Experimental evaluation of the punching impact on the dynamic magnetic performances of M330-35A SiFe steel

Oualid Messal
Afef Kedous-Lebouc
André Youmssi

Univ. Grenoble Alpes, CNRS, Grenoble INP*, G2Elab, 38000 Grenoble, France

Université de N’gaoundéré, BP. 455 N’gaoundéré, Cameroun

Corresponding Author Email: 
oualid.messal@g2elab.grenoble-inp.fr
Page: 
413-423
|
DOI: 
https://doi.org/10.3166/EJEE.18.413-423
Received: 
N/A
|
Accepted: 
N/A
|
Published: 
31 December 2016
| Citation
Abstract: 

The punching induces stress in electrical steels. This stress contributes to the degradation of their soft magnetic properties. The high-speed machine design step, specifically, for on board applications (automotive, aircraft generators, etc.), requires the consideration of the influence of both punching and frequency on the magnetic properties of the material. In this paper, thin SiFe soft magnetic characteristics are investigated. To do so, series of rectangular samples of variable width have been industrially punched and then measured based on a mini-Epstein frame. The measurements have been conducted from 50Hz to 1kHz and from 0.3T to 1.7T. Both longitudinal and transverse directions have been explored and the results are presented in an effort to supply the most relevant conclusions concerning the degradation of the dynamic magnetic characteristics.

Keywords: 

electrical steels, frequency, high-speed machines, magnetic characteristics, punching.

Extended abstract
1. Introduction
2. Sample preparation and experimental procedure
3. Magnetic characterization of the punching impact at 50 Hz
4. Joint punching and frequency effect
5. Conclusion and prospects
Acknowledgements

The authors would like to thank the GIRTOM program members: DGA, EDF, GIMELEC, LEROY SOMER and THALES for this study support.

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