Stamping die replica and method of manufacture thereof

Details Stamping die replica and method of manufacture thereof Stamping die replica and method of manufacture thereof

1989-08-18

1991-01-29

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Die

76DIG6, 156151, 156297, 204 6, 101 28, B21D 3720, C25D 110

Patent

active

049877992

ABSTRACT:
A method of making replicas of a master stamping die having a master die pattern in relief comprises first making a negative mold of the master stamping die. The mold has a negative mold cavity pattern corresponding to said master die pattern. One or more layers of die forming material is electrodeposited on the negative mold to create a replical die electroform having a cavity pattern like the mold cavity pattern. A thin electrically insulative shield is formed which has a opening pattern having generally the outline of the electroform cavity pattern. The shield is laminated on the replica die electroform with the opening pattern aligned with the electroform cavity pattern. A die material is electrodeposited into the electroform cavity pattern through the opening pattern in the shield to fill the electroform cavity pattern.

REFERENCES:
patent: 3065511 (1959-11-01), Leitzel
patent: 3727489 (1973-04-01), Inoue
patent: 4231982 (1980-11-01), Jansson
patent: 4579022 (1986-04-01), Kasai et al.
patent: 4696722 (1987-09-01), Towlson

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