The rotor core of an induction motor is also made of laminated silicon steel sheets Not cast steel
Most of the motors and transformers are stacked with silicon steel sheets to reduce the loss of the magnetic circuit. Otherwise, they can cause severe fever. But heating caused by magnetic circuit loss can also be used, such as induction cooker.
The rotor shaft is not overlapped by silicon steel sheet, usually 45 steel, and the silicon steel sheet is sheathed on the rotor shaft when folded and pressed.
