Method of bonding dissimilar materials

Details Method of bonding dissimilar materials Method of bonding dissimilar materials

1986-05-29

1987-10-13

Jordan, M.

Metal fusion bonding

Process

Using only pressure

228205, B23K 2024, B23K 2002

Patent

active

046993096

ABSTRACT:
A pair of soft-metal blocks are placed side by side constrainingly on a stationary platen with a space therebetween such that the opposing flank surfaces of the blocks confront each other. Into the space is pressed downward by a movable platen a hard-metal block which has opposing flank surfaces having sharp edges at the lower ends thereof, respectively, the opposing flank surfaces also tapering correspondingly. As the hard-metal block is moved forcibly into the space, the edges operate to pare or peel respective surface layers of the opposing flank surfaces of the soft-metal blocks thereby to create respective fresh surfaces of the soft-metal blocks. The opposing flank surfaces of the hard-metal block are therefore pressed strongly against the fresh surfaces, respectively, as the hard-metal block advances, and strong diffusion welded joints are produced. The method is carried out at elevated temperature.

REFERENCES:
patent: 3300838 (1967-01-01), Slater et al.
patent: 3571907 (1971-03-01), Watson
patent: 3612389 (1971-10-01), Green
patent: 3639974 (1972-02-01), Finnegan
patent: 4200217 (1980-04-01), Imai et al.

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