Alcan Rhenalu

Constellium France

Constellium Rolled Products Ravenswood, LLC

Alcan Rolled Products - Ravenswood, LLC

Imertech Sas

Constellium Issoire

David Dumont

Vic Dangerfield

Timothy Warner

Bernard Bes

Armelle Danielou

Jean-Christophe Ehrstrom

Philippe Lequeu

Olivier Ribaud

Kenneth Paul Smith

Benoit Commet

Ségolène Berzati

Benoît Commet

A rolled or forged Al&#x2014;Zn&#x2014;Cu&#x2014;Mg aluminum-based alloy wrought product having a thickness from 2 to 10 inches. The product has been treated by solution heat-treatment, quenching and aging, and the product comprises (in weight-%): Zn 6.2-7.2, Mg 1.5-2.4, Cu 1.7-2.1. Fe 0-0.13, Si 0-0.10, Ti 0-0.06, Zr 0.06-0.13, Cr 0-0.04, Mn 0-0.04, Mn 0-0.04, impurities and other incidental elements &#x2266;0.05 each. Alloys per se and aircraft and aerospace uses, as well as methods of making products are also disclosed.

Al-Zn-Cu-Mg aluminum base alloys and methods of manufacture and use

A vertical casting process for an intermediate product, including the steps of (a) preparation of at least two aluminum based alloys, particularly a first alloy with composition P and a second alloy with composition T, (b) casting of the first alloy with composition P to a required height H, and (c) casting of an additional required height Hof the alloy with composition T. The object of this invention is the manufacture of monolithic structural elements with working properties that are variable in at least one direction, and particularly bi-functional or multi-functional structural elements capable of performing at least two functions that are traditionally performed by two different parts.

Manufacturing process for semi-finished products containing two aluminum-based alloys

The present invention is directed to optimization of recrystallization rates on the fatigue crack growth resistance, in the particular case of a Al&#x2014;Zn&#x2014;Cu&#x2014;Mg plate products, and especially on the evolution of da/dN.

Recrystallized Al-Zn-Cu-Mg plate with low zirconium

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Gardanne, France

David Dumont