Audi Ag

Alusuisse Technology & Management Ltd.

Alcan Technology & Management Ltd.

Jorg Hein

Wulf Leitermann

Armin Zuber

Frank Wehner

Klaus Koglin

Lutz Kampmann

Alexander Hoffman

A process as claimed for the invention for internal high-pressure reshaping of a hollow section () in a reshaping tool, a fluid being introduced under high pressure Pinto a hollow section and this section having a transitional area with different wall thicknesses in the area of an edge (to) to be blocked, is characterized in that the shape selected for the hollow section () in the initial state is such that a thickened area (to) extends a certain distance from the edge (to) into the wall section () with smaller wall thickness. As a result, constrictions can be avoided during reshaping and favorable edge geometries can be achieved (FIG.).

Method for hydroforming a hollow profile

A vehicle frame for powered vehicles with load-bearing sections and on these at least one housing for the upper end of a shock absorber; the housing is made of an extruded alloy, features a cover which is dished upwards, and is made up of a plurality of extruded shaped parts, each of which features shell-shaped sections which are curved in cross-section; projecting from the shell-shaped sections are at least two flange strips which serve as means for attachment to the neighbouring shaped part. The shaped part comprises shell-shaped sections each of which in cross-section is part of a circle and at the ends feature--as viewed in cross-section--flange strips running approximately radial to the central axis (B) of the housing.

Vehicle frame with housing for a shock-absorber

Growing community of inventors

Steisslingen, Germany

Jorg Hein