METHOD FOR MANUFACTURING LAYERED CORE Russian patent published in 2024 - IPC H01F41/02 H01F3/02 H02K15/02 

FIELD: electrical engineering.

SUBSTANCE: method of producing a layered core by stamping electrical steel strips including an adhesive insulating coating to form individual core sheets and layering individual core sheets. The method comprises the steps of: pressing two or more strips of electrical steel using a guide roller to temporarily bond the strips of electrical steel without using glue immediately before stamping; and obtaining individual core sheets by stamping after inserting two or more electrical steel strips into a punching die after temporarily bonding them. Layering of individual core sheets is carried out without the use of glue. In this case, the electrical steel strips are not heated before pressing, during pressing, after pressing, and before stamping.

EFFECT: improved performance of the core.

4 cl, 8 dwg, 1 tbl, 3 ex