Apparatus for making a tool

Details Apparatus for making a tool Apparatus for making a tool

1983-01-03

1984-07-17

Tufariello, Thomas

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C25D 1712

Patent

active

044604491

ABSTRACT:
A tool for producing a pattern of highly accurate and 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 like or different pins, arranged in various patterns.

REFERENCES:
patent: 3926402 (1975-12-01), Heenan
patent: 3957616 (1976-05-01), Montgomery
patent: 4080280 (1978-03-01), Heasley

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