Method of manufacturing dual alloy turbine disks

Details Method of manufacturing dual alloy turbine disks Method of manufacturing dual alloy turbine disks

B - Operations, Transporting

21

J

78/30, 170/78

B21J 5/02 (2006.01) B21J 1/06 (2006.01) B21J 5/00 (2006.01) B21K 1/32 (2006.01) B23K 20/02 (2006.01) F01D 5/02 (2006.01)

Patent

CA 2021628

An article of manufacture having at least a first and a second part, each part having different mechanical properties, compositions, microstructures or combinations thereof, being joined together using a forging process to yield a substantially defect-free joint region. The article in the form of a turbine disk is particularly suited for use in a gas turbine engine in which the hub or inner portion must be resistant to law cycle fatigue and have high strength, while the rim or outer portion must be resistant to stress rupture failure and creep failure.

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