Load regulating expansion fixture

Details Load regulating expansion fixture Load regulating expansion fixture

1996-01-16

1998-12-15

Ramsey, Kenneth J.

Metal fusion bonding

Including means to force or clamp work portions together...

228 55, B23K 2002

Patent

active

058487468

ABSTRACT:
A free standing self contained device for bonding ultra thin metallic films, such as 0.001 inch beryllium foils. The device will regulate to a predetermined load for solid state bonding when heated to a bonding temperature. The device includes a load regulating feature, whereby the expansion stresses generated for bonding are regulated and self adjusting. The load regulator comprises a pair of friction isolators with a plurality of annealed copper members located therebetween. The device, with the load regulator, will adjust to and maintain a stress level needed to successfully and economically complete a leak tight bond without damaging thin foils or other delicate components.

REFERENCES:
patent: 3110961 (1963-11-01), Melill et al.
patent: 4089456 (1978-05-01), Toppen et al.
patent: 4204628 (1980-05-01), Houston et al.
Truhan et al, "Fabrication of Thin Beryllium Windows for X-Ray Applications", UCRL-83767, Lawrence Livermore Labratory, University of California, Livermore, Ca 94550, USA, Dec. 19, 1979.

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