Thyssenkrupp Presta Teccenter Ag

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Niles-Simmons Industrieanlagen Gmbh

Jens Gentzen

Daniel Paul

Jürgen Meusel

Juergen Meusel

Robert Reichelt

Bernhard Pause

Frank Schieck

Rico Demuth

Alexander Paul

Moritz Halle

Hans J Naumann

Ruben Bauer

Carsten Hochmuth

Gerhard Schmidt

The invention relates to a method for producing a tubular structural part by means of hydroforming. An assigned end of a supporting tube () is inserted into an opening in an end piece () and then widened by a pressurized fluid being applied to it and is connected to the end piece () with a press fit. The opening () has a first portion () with a first inner cross section, which is greater than the outer cross section of the assigned end of the supporting tube (). According to the invention, the first portion () is adjoined by a second portion (), in a step-shaped manner so as to form an edge (). The inner cross section of the second portion () is smaller than the outer cross section of the assigned end of the supporting tube (). In the method according to the invention, the supporting tube () is first inserted with its corresponding end into the first portion (), before the edge () cuts into the material of the supporting tube () in a further pushing-in movement.

Method and parts for making a tubular workpiece, in particular a built-up camshaft

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Lichtenau, Germany

Jens Gentzen