Copper Motor Rotor

The use of copper for the conductor bars and end rings of induction motors in place of aluminum results in attractive improvements in motor energy efficiency. Until recently, die cast motor rotors were universally produced using aluminum because rotor fabrication by aluminum pressure die-casting was an established practice, and copper pressure die-casting was unproven. This section identifies and demonstrates design methods, manufacturing process parameters, and durable mold materials that have enabled economical production of die-cast copper motor rotors.

Table of Contents:

• The Copper Motor Rotor Production Process
  A detailed and technical review of the copper motor roter production process, from design to manufacture. Browse Close
  • Optimization of Motor Design
  • Select Copper Material
  • Select Lamination Steel
  • Produce Laminations
  • Insulate Lamination
  • Assemble Rotor
  • Design Dies
  • Insert Rotor into Dies
  • Melt Copper
  • Pour Molten Copper
  • Cycle and Monitor Press
  • Eject Finished Rotor
  • Video of Rotor Casting
• Technical Papers
  
• Press Releases
  
• Progress Reports 2001-2007
  Periodic updates issued on progress, news and developments in the copper motor rotor program by CDA.
• Technology Transfer Report
  Introducing copper into the rotor should allow your company to cost effectively reach the next frontier in motor development. The higher conductivity of copper enables you to envision a range of design options.