Metal fusion bonding – Process – Using only pressure
Patent
1990-02-14
1992-01-28
Heinrich, Samuel M.
Metal fusion bonding
Process
Using only pressure
228177, 228208, 228248, 228265, B23K 2000, B23K 2016
Patent
active
050836978
ABSTRACT:
A method for joining a first metal surface to a second metal surface employs metallized particles or protuberances disposed between said surfaces. The metallized particles include a core particulate composed of a material having a hardness greater than that of the metals to be bonded. By compressing the metal surfaces together in a generally normal or perpendicular direction, one or both of the metal surfaces is compressed into a metal region formed around the particulate core. In this way, very high local regions of stress are created which cause the metal to elastoplastically deform, enhancing the ability to form diffusion bonds. Alternatively, temporary electrical or other junctions may be formed by bringing the surfaces together under less rigorous conditions and/or using metals which are incapable of forming diffusion bonds.
REFERENCES:
patent: 3100933 (1963-08-01), Hancock et al.
patent: 3203083 (1965-08-01), Obenhaus
patent: 3482726 (1969-12-01), Schroeder, Jr.
patent: 3555664 (1971-01-01), Bingham et al.
patent: 3632319 (1972-01-01), Hoppin et al.
patent: 3700427 (1972-10-01), Hoppin, III et al.
patent: 3818415 (1974-06-01), Evans et al.
patent: 3921885 (1975-11-01), Knox
patent: 4606778 (1986-08-01), Jahnke
patent: 4804132 (1989-02-01), DiFrancesco
patent: 4814040 (1989-03-01), Ozawa
Hogerton et al., 3M/I&E Sector Labs, 3M Center, pp. 1-10.
Haufler et al. (1986) Proc. Conf. High Temperature Alloys for Gas Turbines. . . D. Reidel, eds. pp. 801-810.
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