Identification of Magnetic Properties for Cutting Edge of Electrical Steel Sheets

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Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2017-03-01
Major/Subject
Mcode
Degree programme
Language
en
Pages
5
1049 - 1053
Series
IEEE Transactions on Industry Applications, Volume 53, issue 2
Abstract
Electrical steel sheets of motors and generators are usually shaped to the final form by punching. The punching and other cutting processes generate large plastic deformations and residual stresses. These are known to deteriorate the magnetic properties of the edge region. However, the characterization of this deterioration in the form of magnetic properties is missing. The main aim of this paper is to propose a method to identify the magnetic properties of the edge region based on experimental results. This approach is demonstrated by using previously presented test results for magnetic properties of rectangular strips. The width of these strips is varied, and thus, the share of the edge region to the whole can be used as a variable. Based on this variation, a simple model is developed and the model parameters fitted to the experimental results. The correspondence between the calculated and experimental results is good.
Description
| openaire: EC/FP7/339380/EU//ALEM
Keywords
electric machines, magnetic losses, magnetic materials, magnetic properties, punching, sheet materials, sheet metal processing
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Citation
Holopainen , T P , Rasilo , P & Arkkio , A 2017 , ' Identification of Magnetic Properties for Cutting Edge of Electrical Steel Sheets ' , IEEE Transactions on Industry Applications , vol. 53 , no. 2 , pp. 1049 - 1053 . https://doi.org/10.1109/TIA.2016.2638405