Method for producing a metal product having improved lustre afte

Details Method for producing a metal product having improved lustre afte Method for producing a metal product having improved lustre afte

1990-01-29

1991-09-03

Zimmerman, John J.

Metal working

Method of mechanical manufacture

Roller making

291211, 72199, B21B 100, B21D 5300

Patent

active

050440764

ABSTRACT:
A metal product, such as cold rolled steel sheet, has a surface comprising a plurality of flat, smooth facets which are preferably 50 to 200 .mu.m across and which make up at least 30% of the area of said surface. The facets may be formed either by pressing a network of valleys in a flat, smooth surface or by flattening the peaks of a rough surface.

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