Constellium Issoire

Constellium France

Constellium Valais Sa

Sylvie Arsene

Timothy Warner

Jean-Christophe Ehrstrom

Christophe Jaquerod

Petar Ratchev

Julien Laye

Pascale Favier

Myriam Bouet-Griffon

Nicolas Calabretto

Jérôme Guillemenet

Céline Andrieu

The present invention relates to plates with a thickness of between 8 and 50 mm and made from aluminum alloy with a composition, as % by weight, Si: 0.7-1.3; Mg: 0.6-1.2; Mn: 0.65-1.0; Fe: 0.05-0.35; at least one element selected from Cr: 0.1-0.3 and Zr: 0.06-0.15; Ti<0.15; Cu<0.4; Zn<0.1; other elements <0.05 each and <0.15 in total, the remainder aluminum, and the method for manufacturing same. The plates according to the invention are particularly useful as precision plates, in particular for producing elements of machines, for example assembly or inspection equipment. The plates according to the invention have improved dimensional stability in particular during the machining steps, while having sufficient static mechanical properties, and excellent suitability for anodizing.

Aluminum alloy precision plates

A process for manufacturing a bimetallic part by means of a first component formed by a first aluminum alloy and a second component formed by a second aluminum alloy, said process involving: assembling the first component and the second component to obtain an assembled part; applying a thermal treatment to the assembled part at a temperature of 100 to 250° C., the thermal treatment causing the assembled part to deform, in particular as a result of a metallurgical deformation by a precipitation of hardening phases of the first component and/or the second component; cooling the part to ambient temperature, upon which the part remains deformed. The process involves, prior to the assembling step, an estimation of the degree of deformation that the assembled part will undergo under the effect of the thermal treatment.

Process for manufacturing a bimetallic part using a dilation-causing thermal treatment

Sheet metal plate for creating flooring, particularly of industrial vehicles, over which trucks are to run, having a plurality of patterns, the maximum height of said reliefs ranging between 0.2 and 1.5 mm, said reliefs having a friction surface which has a mean width of at least 1 mm, in which said reliefs are arranged in a plurality of aligned groups of reliefs all of the same shape, the same orientation, and with their centers of gravity substantially aligned in one and the same given direction (D), the minimum distance, measured in said direction (D), between two adjacent reliefs of one and the same aligned group being less than 6 mm. The direction (D) in which the aligned groups are aligned advantageously coincides with the direction (De) in which the trucks run.

Sheet metal plate with reliefs for creating industrial flooring over which trucks are to run, engraved cylinder for obtaining such sheet metal plates by rolling

The invention relates to a metal composite panel intended for construction, including at least two substantially parallel sheets () and () with at least three profiles () substantially parallel to each other arranged between and fastened to the sheets. The three profiles serve as separators, making it possible to separate the sheets and are arranged so that the average distance between two adjacent profiles is not necessarily uniform but suited to the local conditions of use of said panel. In order to obtain a panel having an optimal compromise between weight and performance, light alloys and, in particular, aluminum are advantageous. The composite panels are particularly useful as a floor of a rolling vehicle, as the floor, deck or ramp of a floating vehicle or as the floor of a flying vehicle.

Metal composite panel and method of manufacture

Growing community of inventors

Grenoble, France

Sylvie Arsene