ROTATING ELECTRIC MACHINE CORE, ROTATING ELECTRIC MACHINE USING THE SAME, AND METHOD OF MANUFACTURING ROTATING ELECTRIC MACHINE CORE
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Oct 1, 2024
filing date -
Oct 1, 2024
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Abstract
A method of manufacturing a rotating electric machine core, in which the method includes: a localized alloying processing step of forming a localized alloying area by applying localized alloying processing to the leakage magnetic flux reduction area, where an insulating film is applied onto a surface of an individual sheet or a predetermined number of laminated sheets; a pressing and punching step including a pressing step of pressing the localized alloying area so as to be thinner than other portions of the laminating steel sheet, and a punching step of punching the laminating steel sheet into a shape of the rotating electric machine core; and a laminating and forming step of laminating portions that have been thinned, so as to be to aligned to form gaps therebetween, and forming the rotating electric machine core by laminating the other portions in contact with each other through the insulating film.
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