Tool for coldforming operations

Details Tool for coldforming operations Tool for coldforming operations

1997-07-17

1999-09-07

Turner, Archene

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428457, 428469, 428472, 428698, 428704, 51295, 51307, 51309, 407119, 75238, 75243, 75244, 427444, C22C 2902

Patent

active

059485230

ABSTRACT:
An improved coldforming tool made of a zone in a tungsten carbide-cobalt cemented carbide is disclosed. The tool, preferably a wire drawing nib, contains WC with a mean grain size of 1.5-2 .mu.m and 5-7 weight % Co and with a carbon content close to saturation level and sufficient to exhibit cobalt magnetic measurements of 92%-98% of that of pure cobalt.

REFERENCES:
patent: 3915757 (1975-10-01), Engel
patent: 3959092 (1976-05-01), Komatsu et al.
patent: 4236926 (1980-12-01), Lindholm et al.
patent: 4404045 (1983-09-01), Thevenot et al.
patent: 4961780 (1990-10-01), Pennington, Jr.
patent: 5116416 (1992-05-01), Knox et al.

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