Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1984-06-08
1986-05-13
Goldberg, Howard N.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
291568B, 295276, 29558, 29DIG31, 219121LN, 2281411, 228160, 228174, 228193, 416 95, 416181, 416213R, 416229R, 419 8, 419 28, 419 49, 430299, B21K 304, B23P 1504, B22F 504, F01D 500
Patent
active
045877009
ABSTRACT:
A dual alloy cooled turbine is manufactured by casting a hollow cylinder of first nickel-base alloy material with high creep resistance to produce directionally oriented grain boundaries. A preform of a second nickel-base alloy material with high tensile strength and high low-cycle-fatigue strength is diffusion bonded into the bore of the hollow cylinder by subjecting the cylinder and preform to hot isostatic pressing. The resulting cylindrical block is cut into thin precisely flat wafers. A plurality of alignable holes for forming fluid cooling passages are photochemically etched into the individual wafers. The wafers then are laminated by vacuum diffusion bonding techniques, with the holes aligned to form fluid cooling passages. The resulting laminated block is machined to produce the turbine wheel with turbine blades through which the cooling passages extend.
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Curbishley George
Hoppin, III George S.
Goldberg Howard N.
Konneker J. Richard
Miller Albert J.
The Garrett Corporation
Wallace Ronald S.
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