Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1975-07-24
1977-03-08
Smith, Al Lawrence
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29445, 228160, 228190, 228194, 228234, 228263, 416224, B23P 1504
Patent
active
040105300
ABSTRACT:
A method for producing a generally bifurcated metal protective sheath for the edge of an aerodynamic blade comprising the steps of (1) providing a metal sheath mid-section element having a top and bottom surface, (2) covering the top and bottom surface with an aluminum bonding material, (3) laying up separate metal top and bottom sheath cover elements on each of the top and bottom surfaces of the mid-section element to cover and overhang the same, the aluminum bonding material having a solidus temperature lower than the solidus temperatures of the mid-section element and the top and bottom cover elements, and (4) subjecting the layup to heat and pressure in a die for a time sufficient to bring the temperature of the bonding material to a temperature which is below but within approximately 20.degree. F of its solidus temperature to solid state diffusion bond the mid-section and cover elements together without forming intermetallics.
REFERENCES:
patent: 2615236 (1952-10-01), Stulen et al.
patent: 2851770 (1958-09-01), Fromson
patent: 2884077 (1959-04-01), Stamm et al.
patent: 3002567 (1961-10-01), Stulen et al.
patent: 3478416 (1969-11-01), Hamilton
patent: 3670397 (1972-06-01), Lewis
Garrett et al., Broad Applications of Diffusion Bonding, N.A.S.A. CR409, Wash. D.C., Mar. 1966, p. 117.
Carlson Carl Edwin
Delgrosso Eugene Joseph
Jennings James Augustus
Del Ponti John D.
Ramsey K. J.
Smith Al Lawrence
United Technologies Corporation
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