Stripper die and method of increasing the service life thereof

Details Stripper die and method of increasing the service life thereof Stripper die and method of increasing the service life thereof

1991-02-25

1992-03-31

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Die

72254, 29557, B21K 520, B21C 2510

Patent

active

050997238

ABSTRACT:
A stripping die having a cutting edge formed by the intersection of a truncated pyramid outer surface and an axial bore inner surface; such surfaces first being cut until the surface roughness thereof is less than 1 um., and then being coated with a high hardness, high wear resistant metallic compound having a uniformly thin thickness of between 1 and 10 um.

REFERENCES:
patent: 3911541 (1975-10-01), Ziemek et al.

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