Method of making tooling

Details Method of making tooling Method of making tooling

1978-11-02

1980-09-02

Baldwin, Robert D.

Metal founding

Process

Shaping a forming surface

164 45, 249116, B22C 702, B22C 904

Patent

active

042201900

ABSTRACT:
A method of producing cast metal tooling, especially injection molds or dies, characterized by the steps of making a thin walled, investment cast shell which defines the functional cavity surface of the tooling, and casting a suitable backing metal against the shell to form a composite die or mold structure.

REFERENCES:
patent: 1969728 (1934-08-01), Cushman, Jr.
patent: 2515017 (1950-07-01), Nicholson
patent: 3228650 (1966-01-01), Gilliland et al.

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