Method and apparatus for rolling metallic material

Details Method and apparatus for rolling metallic material Method and apparatus for rolling metallic material

1977-01-17

1978-08-15

Mehr, Milton S.

Metal deforming

By use of roller or roller-like tool-element

72252, 72205, 72366, 72234, B21B 100, B21B 108, B21B 102, B21B 3906

Patent

active

041063180

ABSTRACT:
In the rolling of metallic material by using a rolling mill having a working roll for each surface of the workpiece reduced and having the shafts fixed with respect to movement in the direction of travel of the workpiece, the workpiece is rolled at such a high reduction rate in cross-sectional area that the contact angle .theta. between the working roll and the workpiece can have a value of .gtoreq. tan.sup.-1 .mu. (.mu. being the coefficient of friction between the working roll and the workpiece), and the rolling operation is carried out by pushing the workpiece between the working rolls, so that a neutral point of relative movements between the rods and the workpiece wire remain within the surface along which the working roll and the workpiece contact each other. The rolling apparatus has a device to push the workpiece between the working rolls and a rolling mill or rolling mills of high reduction capacity to roll the thus pushed workpiece at a high reduction rate of the cross-sectional area, whereby there can be rolled strip, bar, wire rod shape, beam blank or the like in a limited number of passes.

REFERENCES:
patent: RE19590 (1935-05-01), Coe
patent: 723834 (1903-03-01), Cooper
patent: 2811060 (1957-10-01), Sendzimir
patent: 3553997 (1971-01-01), Schoffmann

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