Method of manufacturing a c-shaped rail with profiled surfaces

Details Method of manufacturing a c-shaped rail with profiled surfaces Method of manufacturing a c-shaped rail with profiled surfaces

B - Operations, Transporting

21

D

B21D 5/16 (2006.01) B21B 1/08 (2006.01) B21D 5/08 (2006.01) B21H 8/00 (2006.01)

Patent

CA 2172876

A method of manufacturing an elongated rail with a C-shaped cross-section transversely of its elongated direction from a sheet metal strip by bending marginal sections along each elongated side edge of the strip at 90° with respect to the surface of the strip. Effecting the bending action by discs. Next using a profiling disc rolling a profiled surface into each of the side edges and then after returning the marginal edges to their original thickness, bending the strip into a C- shaped cross section extending transversely of its elongated direction.

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