Cross edge rolling
Assigneefischerwerke GmbH & Co. KG
InventorChristoph WIEDNER
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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, wherein the strip is transversely compression-rolled in its transverse direction (Q) so that the strip becomes narrower and at the same time the longitudinal edge strip becomes thicker, wherein before or simultaneously with the cross edge rolling process, the strip is bent in a transverse direction (QS) in opposite directions along two parallel bending lines which extend in a longitudinal direction of the strip and otherwise delimit the longitudinal edge strip from the strip, so that a step extending in the longitudinal direction of the strip is produced, on which step the strip is supported transversely to the strip during the cross edge rolling process of the longitudinal edge strip.
Dependencies are inferred from the claim text.