Method of producing chain links for fine jewelry rope chains

Details Method of producing chain links for fine jewelry rope chains Method of producing chain links for fine jewelry rope chains

1995-10-24

1996-08-13

Jones, David

Chain, staple, and horseshoe making

Chain making

Sheet metal

59 15, 59 16, 59 351, B21L 1700

Patent

active

055444776

ABSTRACT:
A commercially viable process for producing chain links suitable for use in making fine jewelry rope chains, said chain links having gaps for intertwining one link within another, comprising the steps of providing a sheet of precious metal of an appropriate thickness determined by the thickness of the link to be produced; piercing said sheet with a single punch from a mating punch and die set having the predetermined shape of the link to produce a finished link with a gap in the range of 0.2-0.7 mm which link is separated from said sheet; and recovering the link.

REFERENCES:
patent: 5309704 (1994-05-01), Grando

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