Metal working – Method of mechanical manufacture – Impeller making
Reexamination Certificate
2011-05-31
2011-05-31
Look, Edward (Department: 3745)
Metal working
Method of mechanical manufacture
Impeller making
C416S24400R, C416S20400A, C029S889210
Reexamination Certificate
active
07950146
ABSTRACT:
A method of forming a rotor for a turbine engine such that the rotor is formed of two materials including: an outer ring formed from a first steel material, and a disk formed from a second material, such as a low alloy steel, having a larger thermal expansion coefficient than the first material forming the inner disk. The ring may include an inner aperture having a conical shape, and the disk may have an outer surface with a conical shape and a diameter with a portion that is larger than a portion of the ring. The ring may be heated such that the aperture expands to a size greater than the largest diameter of the inner disk. The ring may be positioned over the disk and allowed to cool to allow the ring to be attached to the disk. The ring and disk may then be co-forged.
REFERENCES:
patent: 3822953 (1974-07-01), Adelizzi
patent: 3967919 (1976-07-01), Coulon et al.
patent: 4270256 (1981-06-01), Ewing
patent: 4566810 (1986-01-01), Yoshioka et al.
patent: 4615658 (1986-10-01), Kagohara et al.
patent: 4710103 (1987-12-01), Faber et al.
patent: 4778345 (1988-10-01), Ito et al.
patent: 4836750 (1989-06-01), Modafferi et al.
patent: 4962586 (1990-10-01), Clark et al.
patent: 5161950 (1992-11-01), Krueger et al.
patent: 5746579 (1998-05-01), Amos et al.
patent: 6152697 (2000-11-01), Konishi et al.
patent: 6324831 (2001-12-01), Izadi et al.
patent: 6454531 (2002-09-01), Crawmer
patent: 6575700 (2003-06-01), Arai et al.
patent: 6753504 (2004-06-01), Keller et al.
patent: 6767649 (2004-07-01), Staubli et al.
patent: 7065872 (2006-06-01), Ganesh et al.
patent: 7108483 (2006-09-01), Segletes et al.
patent: 7137787 (2006-11-01), James
patent: 2003/0116549 (2003-06-01), Vanstone et al.
patent: 2005/0106012 (2005-05-01), Scarlin
patent: 2006/0067832 (2006-03-01), Groh et al.
patent: 2006/0118215 (2006-06-01), Hirakawa et al.
patent: 2008/0253890 (2008-10-01), Arrell et al.
patent: 58130256 (1983-08-01), None
Arrell Douglas J.
James Allister W.
Look Edward
Prager Jesse
Siemens Energy Inc.
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