Constellium Singen Gmbh

Bayerische Motoren Werke Aktiengesellschaft

Frank Gensty

Matthias Kutscher

Fabian Pfaender

Martin Jarrett

Alexis Skubich

Egon Mayr

Ivan Grbavac

Paul Konkel

Roland Tirard-Collet

Alexander Bader

The invention relates to a manufacturing process for obtaining 6xxx-series aluminium alloy solid extruded products, comprising Si: 0.3-1.7 wt. %; Mg: 0.1-1.4 wt. %, Cu: 0.1-0.8 wt. %, Zn 0.005-0.7 wt %, one or more dispersoid element, from the group consisting of Mn 0.15-1 wt. %, Cr 0.05-0.4 wt. % and Zr 0.05-0.25 wt. %, Fe at most 0.5 wt. %, other elements at most 0.05 wt. % the rest being aluminium, having particularly high mechanical properties, typically an ultimate tensile strength higher than 400 MPa, preferably 430 MPa, and more preferably 450 MPa without the need for a post-extrusion solution heat treatment operation. The invention also concerns a manufacturing process for obtaining a bumper system in which is integrated a towing eye, said towing eye being made with said high mechanical properties aluminium alloys.

Manufacturing process for obtaining high strength solid extruded products made from 6XXX aluminium alloys for towing eye

The invention relates to a bumper () for a motor vehicle, with a crossmember element () which has preferably two homogeneous outer sections () and a central section () differing from the outer sections (), wherein the central section () is displaced vertically downwards or upwards with respect to the two outer sections (). According to the invention, provision is made that the crossmember element () is constructed as an extrusion and in that at least one of the sections (to) has at least one additional element () arranged monolithically with the crossmember element ().

Bumper for a motor vehicle and method for its production

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Ostrach, Germany

Frank Gensty