Hilti Aktiengesellschaft

Frank Jackel

Christoph Wiedner

Fritz Hermann

Frank Bertram

Juergen Gebhard

Erwin Karle

Jürgen Gebhard

A cold rolling method for manufacturing a profile () from a one-piece rolling stock in form of initial material () with a plurality of rolls () each having a deforming region () for deforming the initial material () includes bending the initial material () with formation at least one folded section () extending in a rolling direction of the initial material (), and deforming the initial material () in its width direction with reduction of its thickness at least in one region.

Cold rolling method for manufacturing a profile

A method of reducing thickness of unbroken rolling stock () by longitudinal rolling includes deforming the rolling stock () in the width direction with deformation regions (toto) of the rolls (toto) penetrating in the rolling stock to the same depth.

Method of reducing thickness of unbroken rolling stock

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Koln, Germany

Frank Jackel