Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1977-05-31
1978-06-27
Hall, Carl E.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
294205, 29447, 228175, 228186, 228193, 75226, B23P 1504, B23K 1900
Patent
active
040966151
ABSTRACT:
A method for manufacturing a hybrid, dual property turbine wheel assembly comprising the steps of preforming a blade element and separate support ring of a supperalloy material and locating the blades in support slots in the outer diameter of the support ring and radially outwardly of a preformed inner diameter underlying base tangs on each blade element; vacuum braze sealing each of the base tangs within a support slot and thereafter machining the inside diameter of the ring to expose the base tangs; thereafter joining the ring and undercut base tangs thereon to the outside diameter of a preformed disc element and vacuum braze sealing the hub disc and ring blade assemblies to produce a sealed interface region between the outside diameter of the hub element and the inside diameter of the ring and base tangs; and thereafter directly hot isostatically pressing the joined parts to form a direct diffusion bond between the tangs, ring and disc.
REFERENCES:
patent: 1884252 (1932-10-01), Robinson
patent: 2479039 (1949-08-01), Cronstedt
patent: 2769611 (1956-11-01), Schwarzkopf
patent: 2913819 (1959-11-01), Andreotti et al.
patent: 3429700 (1969-02-01), Wiegand et al.
patent: 3590454 (1971-07-01), Brass
patent: 3803702 (1974-04-01), Bratt et al.
patent: 3837068 (1974-09-01), Dunn
patent: 3904101 (1975-09-01), Beltran et al.
patent: 3940268 (1976-02-01), Catlin
Crane Daniel C.
Evans J. C.
General Motors Corporation
Hall Carl E.
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