Grain Oriented Electrical Steel Sheet And Manufacturing Method Therefor

Abstract: This grain-oriented electrical steel sheet has a steel sheet on the surface of which a plurality of grooves extending in a direction intersecting the rolling direction and having a depth in the sheet thickness direction are formed. In a cross-section parallel to the rolling direction and parallel to the sheet thickness direction of the steel sheet, there is at least one protrusion on the side surface or bottom surface of the grooves, the maximum height of said protrusion is 2-50 µm and the maximum width is 2-50 µm, and the difference in orientation between the average crystal orientation in said protrusion and the Goss orientation is 10 degrees or more.

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