Method of producing forming tools

Details Method of producing forming tools Method of producing forming tools

1975-12-19

1978-05-09

Smith, Al Lawrence

Metal tools and implements, making

Blank or process

Die

156155, 156289, B21K 520, B32B 3100

Patent

active

040880460

ABSTRACT:
This invention relates to the production of a forming tool comprising a mould or part which is formed on a master surface and separating the tool from the latter, in which a relatively malleable metal is deposited as a relatively thin metal layer on the master surface such that that side of this layer which faces the master surface will assume the shape and structure of the latter, whereupon on this layer at least another layer of a relatively durable metal is deposited and bonded for forming a metal shell. A backing material is bonded on the shell and the shell and the backing material are separated as a unit from the master surface and used as the mould or forming part of the tool.

REFERENCES:
patent: 3195374 (1965-07-01), Coffin
patent: 3343430 (1967-09-01), Haas et al.
patent: 3631745 (1972-01-01), Walkey et al.

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