Benteler-automobiltechnik Gmbh

Jan Krull

Dieter Friesen

Eugen Seibel

Norbert Niggemeyer

Goddy Hutabarat

Lars Claussen

Paul Kaupmann

A method for producing a torsional profile from a tubular hollow profile, the torsional profile being provided, over its entire length, with spaced-apart walls, is provided. The method includes placing the tubular hollow profile into a first deformation die, positioning the ends of the tubular hollow profile in the first deformation die by means of in each case one tapering first mandrel which extends into a torsional region, positioning the tubular hollow profile over its longitudinal extent in the first deformation die, deforming the tubular hollow profile over its longitudinal extent in the torsional region by means of a first punch, with a reduction in the tube cross-sectional area in the torsional region, and removing the first punch and the first mandrels.

Method for producing a torsional profile from a tubular hollow profile, and torsional profile

The invention relates to a method for producing a torsional profile from a blank. The torsional profile has torsionally rigid tubular end sections, a torsionally flexible U-shaped middle longitudinal section and, between the middle longitudinal section and the end sections, transition sections which change from the U-shaped cross section to the tubular cross section.

Method for producing a torsional profile from a blank, and torsional profile

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Schlangen, Germany

Jan Krull