Metal fusion bonding – Process – Using only pressure
Patent
1980-08-25
1981-08-04
Weidenfeld, Gil
Metal fusion bonding
Process
Using only pressure
228 31, 29509, B23K 2002, B23P 1100
Patent
active
042817862
ABSTRACT:
A pressing machine has opposingly spaced-apart compacting surfaces movable toward each other to weld malleable metal of a metal sheet having a nut-receiving circular aperture therethrough, into a welded state with a malleable metal of circumscribing side-walls of a cylindrically-shaped undercut nut mounted in the aperture. The nut's top has a greater diameter than the aperture. A bottom one of the compacting press surfaces has a raised rim or ridge, and an upper one of the compacting press surfaces has a plurality of raised portions, arranged in a circular array to overlap edge portions of the sheet at its aperture. With the plurality of raised portions pressing downwardly, and the ridge in a circular shape around an annulus hole of the bottom press surface, the compacting surfaces in a single compacting movement in compacting the sheet carrying the inserted nut having overlapping top edges, results in an article in which the metal sheet has become welded to the nut.
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Ramsey K. J.
Weidenfeld Gil
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