Method and apparatus for making a tool

Details Method and apparatus for making a tool Method and apparatus for making a tool

1984-05-02

1987-01-06

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Assembling or joining

204281, B23P 900, C25D 100

Patent

active

046335676

ABSTRACT:
A tool for producing a pattern of highly accurate optical quality surfaces and the method of making same from a series of bi-metallic pins. A high strength metal pin is coupled to a slug of metal of lesser strength capable of being accurately scribed. The supporting pin blank preferably is magnetic stainless steel and the slug is of copper. A group of such bi-metallic pins then is placed in an appropriate fixture after which an optical configuration, such as the three faces of a cube-corner element, are scribed into the copper ends. A completed tool may then be electroformed to produce an electroformed tool from an array of the like or different pins, arranged in various patterns.

REFERENCES:
patent: 1658713 (1928-02-01), Fuller

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