Resent Progress of Non-oriented Electrical Steel and Measurement Techniques

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H.Mogi, Nippon Steel Corporation

Abstract

A recent development of non-oriented electrical steel is introduced for high-speed rotor material, and for low loss core material.
Manufacturing influences by punching and stress are examined, since they deteriorate the magnetic properties. Numerical analysis under the stress is developed to evaluate the influences of shrink fitting and punching.

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