Method of producing molded parts and casting pattern therefor

Details Method of producing molded parts and casting pattern therefor Method of producing molded parts and casting pattern therefor

1985-10-03

1987-07-28

Godici, Nicholas P.

Metal founding

Process

Shaping a forming surface

164 35, 164 44, 164 45, 264226, 264227, B22C 904

Patent

active

046826432

ABSTRACT:
An investment casting process employs a low-cost plastic pattern manufactured by machining. A mold is cast around the plastic pattern following which the pattern is removed from the mold to leave a mold cavity which molten metal or the like may be poured to produce a finished part. Reusable plastic patterns may be formed by casing silastic rubber. The silastic rubber patterns may be mechanically separated from the mold without damaging the pattern.

REFERENCES:
patent: 3313637 (1967-04-01), Schneider
patent: 3426834 (1969-02-01), Jacobs et al.
patent: 3428725 (1969-02-01), Delmonte et al.
patent: 3616841 (1971-11-01), Walz
patent: 3635280 (1972-01-01), Parsons
patent: 3766969 (1973-10-01), Mezby et al.
patent: 3848654 (1974-11-01), Boyle et al.
patent: 4499940 (1985-02-01), Hall
patent: 4518288 (1985-05-01), Cilindro

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