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Composite generator rotor shaft

  • US 20070006445A1
  • Filed: 07/05/2005
  • Published: 01/11/2007
  • Est. Priority Date: 07/05/2005
  • Status: Active Grant
First Claim
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1. A method for manufacturing a rotor shaft for use in a generator, the method comprising:

  • forming a rod from a metal matrix composite material, the rod having an outer diameter;

    heating the rod to attain a stiffness thereof that is greater than about 300 GPa;

    forming a machinable sleeve from material having a stiffness that is less than the stiffness of the rod and that is different than the material of the rod, the sleeve having an inner diameter that is equal to or less than the rod outer diameter; and

    inserting the rod into the sleeve, after the rod is heated.

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