Metal working – Method of mechanical manufacture – Impeller making
Patent
1990-10-01
1991-07-16
Cuda, Irene
Metal working
Method of mechanical manufacture
Impeller making
2988922, 29428, 29505, 228112, 228115, B21K 304
Patent
active
050312880
ABSTRACT:
A compressor rotor structure for a gas turbine engine is made by linear friction bonding stub rooted blades and separate platform pieces, to lands between slots in a compressor disc periphery. These results an integral structure in which the periphery of the disc has had metal removed so as to form the slots and the disc is thus lightened, and the stub roots and platform pieces cooperate to form the airflow inner annulus wall.
REFERENCES:
patent: 3768147 (1973-10-01), Berry et al.
patent: 4096615 (1978-06-01), Cross
patent: 4529452 (1985-07-01), Walker
patent: 4736504 (1988-04-01), Jones
patent: 4864706 (1989-09-01), Jenkel
patent: 4874031 (1989-10-01), Janney
Cuda Irene
Rolls-Royce PLC
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