Constellium Singen Gmbh

Constellium Valais Sa

Roland Tirard-Collet

Matthias Kutscher

Martin Jarrett

Alexis Skubich

Fabian Pfaender

Frank Gensty

Julien Laye

Ivan Grbavac

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

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Voreppe, France

Roland Tirard-Collet