New Manufacturing Technology for Induction Machine Copper Rotors

摘要

The benefits of energy and operational cost savings from using copper rotors arewell recognized. The main barrier to die casting rotors is short mold life. This paper introduces a new approach for manufacturing copper-bar rotors. Either copper, aluminum, or their alloys can be used for the end rings. Further development is needed to study the life time reliability of the joint, to optimize manufacturing fixtures, and to conduct large-rotor tests.