METHOD FOR PRODUCING A SHORT-CIRCUIT INNER ROTOR

摘要

The invention relates to a method for producing a short-circuit inner rotor (1) for an electric motor, comprising a laminated rotor core (2) with rotor grooves (6) which are filled with copper (10) or a copper alloy for forming short-circuit bars (8) of a cage. The rotor grooves (6) of the laminated rotor core (2) are initially closed towards the outer casing (5) and are filled with the copper (10) or copper alloy in a centrifugal casting process, wherein short-circuit rings (9) are simultaneously formed at the axial ends of the rotor grooves (6).