Work roll for rolling device

Abstract

A work roll for use in rolling apparatus for producing from a metal blank sheet articles having a deformed cross section and comprising, for example, a plate portion, and a plurality of upright walls formed on one surface of the plate portion integrally therewith and arranged as spaced apart from one another, such as flat heat exchange tube component members, heat sinks and lead frames. The work roll assures more simplified production work and provides surface finishes with higher accuracy than conventionally. The work roll comprises different kinds of disks having different diameters and arranged alternately on an axis into juxtaposed layers as secured to one another. Large disks 20 A, 20 B, are arranged at respective portions not forming the upright walls, and small disks 21 A, 21 B smaller than the large disks 20 A, 20 B in radius by an amount corresponding to the height of the upright walls are arranged at respective portions for forming the upright walls. Each of the disks 20 A, 20 B, 21 A, 21 B has an outer peripheral surface serving as a working surface.

1 . A work roll for rolling apparatus which comprises different kinds of disks having different diameters and arranged on an axis into juxtaposed layers as secured to one another, the disks of each kind being used in a specified number, each of the disks having an outer peripheral surface serving as a working surface.  
     
     
         2 . A work roll for rolling apparatus according to  claim 1  which is a work roll for use in a rolling apparatus for producing an article having a deformed cross section and comprising a plate portion, and a plurality of upright walls formed on at least one of opposite surfaces of the plate portion integrally therewith and arranged as spaced apart from one another.  
     
     
         3 . A work roll for rolling apparatus according to  claim 2  wherein large disks are arranged at respective portions not forming the upright walls, and small disks smaller than the large disks in radius by an amount corresponding to the height of the upright walls are arranged at respective portions for forming the upright walls.  
     
     
         4 . A work roll for rolling apparatus according to  claim 3  wherein the outer peripheral surface of each of the small disks is formed with projections for forming cutouts in an upper edge of each upright wall of the article of deformed cross section to be produced.  
     
     
         5 . A rolling apparatus comprising a central work roll and a plurality of planetary work rolls arranged around the central work roll and spaced apart cicumferentially thereof, at least one of the central work roll and the planetary work rolls being a work roll according to any one of  claims 1  to  4 .  
     
     
         6 . A rolling apparatus comprising two work rolls in a pair, at least one of the two work rolls being a work roll according to any one of  claims 1  to  4 .