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Identification of Magnetic Properties for Cutting Edge of Electrical Steel Sheets

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Original languageEnglish
Pages (from-to)1049-1053
JournalIEEE Transactions on Industry Applications
Issue number2
Publication statusPublished - 2017
Publication typeA1 Journal article-refereed


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 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.

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Field of science, Statistics Finland

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