Thyssenkrupp Steel Europe Ag

Thyssen Krupp Ag

Wf-maschinenbau U. Blechformtechnik Gmbh & Co. Kg

Wf-maschinenbau Und Blechformtechnik Gmbh & Co. Kg

Thomas Großerüschkamp

Thomas Flehmig

Lothar Patberg

Michael Brüggenbrock

Stephan Drewes

Erik Hilfrich

Mark Hirt

Udo Friese

Roman Glass

Thomas Flöth

Jens Liesner

A method for producing a molded body of particularly steel, and including a hub and a bell-shaped lower part axially connected thereto, in which an inner contour is made in the lower part by non-cutting forming in a convex region. The inner contour includes of ball tracks and cage paths that are concave in the axial direction and arranged in a peripherally alternating manner, for receiving rolling bodies, the cage paths being shallower than the ball tracks. The hub is formed from a rotating round blank and reducing the thickness thereof using at least one pressure roller. The flat region of the round blank that radially connects to the hub is pressed onto contour segments of a rotating first inner contour tool, partially forming the inner contour using at least one axially and radially moving pressure roller to form a preform of the lower part. The fixed preform is pressed against contour segments of a second inner contour tool by a die of partial dies, fully forming the cage paths and ball tracks.

Method for producing a moulded body comprising a hub and device for carrying out the method

Disclosed herein is an apparatus for the continuous and progressive shaping of metal strips to produce a formed metal strip whose cross sectional dimensions vary along a longitudinal axis thereof. The apparatus includes a device for shaping the metal strips, wherein the device has at least one tool set with at least two rotatably mounted and mutually associated tools, wherein the tools each have a pressure face disposed along an outer circumference thereof with a contour configured to shape the workpieces. The contour of the pressure face of at least one tool is not axially symmetric. In order to be able to cost-effectively produce workpieces or profiles with a variable cross section, in particular profiles with a closed cross section, it is proposed that the contours of the pressure faces of all tools, but at least of one tool set, are concave in order to generate a profile having a closed cross section.

Apparatus and method for the continuous and progressive shaping of metal strips to give a profile with longitudinally varying cross section

Growing community of inventors

Duisburg, Germany

Thomas Großerüschkamp