| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a laminated core by integrating a plurality of core materials punched from steel sheets with an adhesive, which method can secure the life of dies by using punching oil, and cannot lower the bonding strength between the core materials by the punching oil, and can manufacture a laminated core having high laminating strength. SOLUTION: The method for manufacturing the laminated core comprises a step for punching the portions except the outer periphery of the core material, a step for applying the adhesive to the portion of a steel plate to become the core material, a step for punching the outer periphery of the core material, and a step for laminating and integrating the punched core materials. The punching oil is applied to the steel plate portion only which does not become the core material, and the punching oil is supplied to the punching portion. COPYRIGHT: (C)2009,JPO&INPIT
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