Cross edge rolling
Assigneefischerwerke GmbH & Co. KG
InventorChristoph Wiedner
Life of this patent
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Abstract
A cross edge rolling process for increasing a thickness of a strip in longitudinal edge strips on both longitudinal sides of the strip. According to the invention, this is achieved in that firstly a step extending in the longitudinal direction of the strip is produced by means of a roll profiling process, wherein the strip is supported during the cross edge rolling process on said step against a compression force acting transversely to the strip, so that the strip is not compressed outside the longitudinal edge strip. After the edging process for increasing the thickness of the longitudinal edge strips, the strip is bent by means of a roll profiling process to form a C-profile rail.
Claims13
A method for thickening a longitudinal edge strip of a strip made of a plastically deformable material, the method comprising:
- transversely compression-rolling the strip in a transverse direction so that the strip becomes narrower and at the same time the longitudinal edge strip becomes thicker, wherein the longitudinal edge strip is a section of the strip extending along a longitudinal direction of the strip at a longitudinal edge of the strip;
- before or simultaneously with the transversely compression-rolling, bending the strip in opposite directions along two parallel bending lines, wherein the bending lines extend in a longitudinal direction of the strip and define the longitudinal edge strip, thereby forming a step extending in the longitudinal direction of the strip;
- and
- supporting the strip at the step during the transversely compression-rolling of the longitudinal edge strip.
Dependencies are inferred from the claim text.