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

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United States of America Patent

PATENT NO 11479838
APP PUB NO 20180171449A1
SERIAL NO

15736173

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Abstract

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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.

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Patent Owner(s)

  • CONSTELLIUM SINGEN GMBH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gensty, Frank Ostrach, DE 3 9
Grbavac, Ivan Stockach, DE 2 7
Jarrett, Martin Little Bourton, GB 9 15
Kutscher, Matthias Constance, DE 9 25
Pfaender, Fabian Tuttlingen, DE 3 9
Skubich, Alexis Zurich, CH 8 15
Tirard-Collet, Roland Voreppe, FR 1 5

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