Laminated core manufacturing method for rotating electrical machine, laminated core manufacturing device, and rotating electrical machine

The invention provides a laminated core manufacturing method of a rotating electrical machine, a laminated core manufacturing apparatus, and a rotating electrical machine, which can realize high-efficiency manufacturing of a plurality of plate-shaped stator core elements through one process and high-precision blanking at the same time. In the method for manufacturing the laminated core of the rotating electrical machine, before a step of punching a plate-shaped rotor core element (21) from a rolled strip-shaped electromagnetic steel plate (4) by a punching mechanism (55), the plate-shaped rotor core element (21) is punched in a second region (42) of the strip-shaped electromagnetic steel plate (4) that is further inward than a first region (41) of the plate-shaped rotor core element (21).The plurality of plate-shaped stator core elements (11) are punched each time in a plurality of punching steps. 提供一种旋转电机的层叠铁芯制造方法、层叠铁芯制造装置以及旋转电机，能实现通过一个工序同时高精度地冲裁多个板状定子芯部元件的高效的制造。在旋转电机的层叠铁芯的制造方法中，在通过冲压机构(55)从由轧制形成的带状电磁钢板(4)中冲