The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2009
Filed:
Mar. 01, 2005
Swami Ganesh, Clifton Park, NY (US);
Robin Carl Schwant, Pattersonville, NY (US);
Ling Yang, Niskayuna, NY (US);
John Zhiqiang Wang, Greenville, SC (US);
Francis Alexander Reed, Scotia, NY (US);
Robert V. Falsetti, Schenectady, NY (US);
Swami Ganesh, Clifton Park, NY (US);
Robin Carl Schwant, Pattersonville, NY (US);
Ling Yang, Niskayuna, NY (US);
John Zhiqiang Wang, Greenville, SC (US);
Francis Alexander Reed, Scotia, NY (US);
Robert V. Falsetti, Schenectady, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A process for producing a rotor, the rotor formed thereby, as well as turbines in which such a rotor is installed. The rotor is formed by casting an ingot to have first and second regions formed of different alloys that intermix during casting to define a transition zone therebetween. The ingot is forged to yield a rotor forging that contains axially-aligned first and second alloy regions and a transition zone therebetween. The effects of the transition zone can be mitigated by modeling the transition zone and then off-center machining the forging so that the axis of rotation of the machined monolithic rotor is more centrally located with respect to the transition zone.