The disclosure relates in general to a method and a system for producing a stator for an electric machine. The stator has a laminated core with individual adjacently arranged steel sheets along an axial direction of the stator. At least some portion of the steel sheets has an electric insulating material. The steel sheets of a laminated core of a stator are stamped out of a raw material. The steel sheets are stacked along the axial direction of the stator to form the laminated core. The steel sheets of the laminated core are clamped along the axial direction of the stator. The clamped laminated core is accommodated in a receptacle. Cut edges of the clamped laminated core accommodated in the receptacle are heated by a heating device in such a way that eddy currents are induced in at least one external portion of the laminated core.

A production apparatus includes a punch, a blanking die, a first holding part, a second holding part, and a heating part A plurality of core sheets is cut out from a steel strip by the punch and the blanking die, an outer peripheral portion of a plurality of core sheets, which has been cut out, is pressurized laterally by the first holding part and the plurality of core sheets is pressurized downward by the punch, and the plurality of core sheets pressurized downward by the punch is heated by the heating part while held in the second holding part. The first holding part holds the plurality of core sheets at a temperature lower than the softening temperature of the adhesive layer, and the heating part heats the plurality of core sheets held in the second holding part to a temperature higher than or equal to the softening temperature.

A production apparatus includes a punch, a blanking die, a first holding part, a second holding part, and a heating part A plurality of core sheets is cut out from a steel strip by the punch and the blanking die, an outer peripheral portion of a plurality of core sheets, which has been cut out, is pressurized laterally by the first holding part and the plurality of core sheets is pressurized downward by the punch, and the plurality of core sheets pressurized downward by the punch is heated by the heating part while held in the second holding part. The first holding part holds the plurality of core sheets at a temperature lower than the softening temperature of the adhesive layer, and the heating part heats the plurality of core sheets held in the second holding part to a temperature higher than or equal to the softening temperature.

A production apparatus includes a punch, a blanking die arranged below the punch, a first holding part arranged below the blanking die, a second holding part arranged below the first holding part and formed of a separate member from the first holding part, and a heating part arranged around the second holding part below the first holding part. A plurality of core sheets is cut out from a steel strip by the punch and the blanking die, an outer peripheral portion of a plurality of core sheets, which has been cut out, is pressurized laterally by the first holding part and the plurality of core sheets is pressurized downward by the punch, and the plurality of core sheets pressurized downward by the punch is heated by the heating part while being held in the second holding part.

A production apparatus includes a punch, a blanking die arranged below the punch, a first holding part arranged below the blanking die, a second holding part arranged below the first holding part and formed of a separate member from the first holding part, and a heating part arranged around the second holding part below the first holding part. A plurality of core sheets is cut out from a steel strip by the punch and the blanking die, an outer peripheral portion of a plurality of core sheets, which has been cut out, is pressurized laterally by the first holding part and the plurality of core sheets is pressurized downward by the punch, and the plurality of core sheets pressurized downward by the punch is heated by the heating part while being held in the second holding part.