Coated punch

Details Coated punch Coated punch

1976-12-30

1978-06-20

Combs, E. M.

Metal deforming

By extruding through orifice

Indirect extrusion

72467, B21C 2500

Patent

active

040954498

ABSTRACT:
A punch used for extruding tin plated cans consisting of a cemented tungsten carbide punch body coated with a thin layer of titanium nitride.

REFERENCES:
patent: 1637111 (1927-07-01), Honig
patent: 1708715 (1929-04-01), Akin
patent: 2753261 (1956-07-01), Goetzel et al.
patent: 3177084 (1965-04-01), Amstein
patent: 3230759 (1966-01-01), Schoenfeld et al.
patent: 3807212 (1974-04-01), Lawson

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