Why should aluminum, not all silicon steel, be used in the construction of the aluminium rotor in the motor?
The magnetic field produced by this current interacts with the rotating magnetic field of the stator to achieve asynchronous operation of the motor. Such as drill made of silicon steel sheet is all can not achieve this function.
The rotor is affected by the rotating magnetic field of the stator, producing the induced current, which is the path of the current.
The aluminum rotor is the squirrel cage rotor of the asynchronous motor, because the cast aluminum part resembles the mouse cage, so it is called the squirrel cage rotor.
