Method of making electrical contacts

Details Method of making electrical contacts Method of making electrical contacts

1983-04-01

1984-12-18

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Electrical device making

200267, 29522R, H01R 4304

Patent

active

044883560

ABSTRACT:
This invention concerns a method of making electrical contact buttons comprising the steps of presenting a strip of clad metal having a width narrower than the diameter of a finished contact electrical contact button and having a thickness greater than the thickness of the finished electrical contact button to a coining operation where the strip is successively pressed between a coining punch and a coining die to successively plastically deform uniformly spaced apart portions of the strip into the configuration of the electrical contact button. Tranverse ribs are then formed in the spaces between contact buttons in order to prevent forward flow of the metal during plastic deformation thereof. The electrical contacts are then punched out of the strip.

REFERENCES:
patent: 2373861 (1945-04-01), Van Inwagen, Jr.
patent: 2646613 (1953-07-01), Enzler
patent: 2715169 (1955-08-01), High
patent: 2854074 (1958-09-01), Frank et al.
patent: 2937434 (1960-05-01), Swift
patent: 3397453 (1968-08-01), Gwyn, Jr.
patent: 4259557 (1981-03-01), Takako

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