Paris, France
Paris, France

Constellium is a global producer of aluminium semi-products with headquarters in Amsterdam, The Netherlands. It was created when Rio Tinto sold off Alcan Engineered Products to Apollo Management and FSI in 2011. Alcan Engineered Products was the result of various mergers and acquisitions between Pechiney, Alcan and Alusuisse. Constellium is listed on the New York Stock Exchange and NYSE Euronext Paris since May 2013.It has a board of ten directors and maintain a one-tier board of directors consisting of both executive directors and non-executive directors . Under Dutch law, the board of directors is responsible for the policy and day-to-day management. The non-executive directors supervise and provide guidance to the executive directors.Constellium manufactures aluminium rolled products and extruded products based on a large variety of advanced alloys. It has customers in different industries, including mainly aerospace, automotive and packaging sectors.Constellium reported €3.495 billion in revenues in 2013. Wikipedia.


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The invention relates to a rigid structure (1) comprising at least one space (10) delimited by a lower wall (11) and an upper wall (12), wherein at least one reinforcing element (20) is interposed between the walls (11, 12) and formed of two separate parts (30, 40), each of said parts (30; 40), referred to as reinforcing parts, comprising a bearing surface (31; 41) facing one of the walls (11; 12), and a contact surface (32; 42) at which the two parts (30, 40) are in mutual contact, the contact surfaces (32, 42) being inclined with respect to the bearing surfaces (31, 41).


Patent
Constellium | Date: 2017-05-24

The invention relates to a method for manufacturing an ingot made of an aluminium alloy using scrap of series 2xxx or 7xxx aluminium alloys, which includes the steps of: (i) provisioning the scrap of series 2xxx or 7xxx aluminium alloys; (ii) optionally separating the oil found on the scrap; (iii) performing a first operation of treating said scrap with a first liquid at a temperature of at least 10 C, said first liquid being an aqueous solution having a pH of 1 to 5 or of 8 to 13; (iv) separating the first liquid and the scrap thus treated; (v) performing at least one second operation of treating said scrap using a second liquid; (vi) separating the second liquid and the scrap thus treated; (vii) melting down said scrap thus obtained; (viii) optionally performing a first solidification to an intermediate unwrought product; and (viii) casting an ingot of aluminium alloy of the series of the scrap used. The invention also relates to a method for manufacturing, after rolling, extruding and/or forging, an aeronautical structural element including, in addition to the steps of the preceding method, at least one step of rolling, extruding and/or forging said ingot of aluminium alloy of the series of the scrap used.


An armor component produced from a 7xxx series aluminum alloy, wherein the aluminum alloy consists essentially of: - 8.4 wt.% Zn 10.5 wt.%; - 1.3 wt.% Mg 2 wt.%; - 1.2 wt.% Cu 2 wt.%; - at least one dispersoid forming element with a total dispersoid forming element content higher than 0.05 wt.%; - the remainder substantially aluminum, incidental elements and impurities; wherein the 7XXX alloy is in the form of a plate having a thickness of 0.5 - 3 inches; wherein the 7XXX alloy is over-aged to achieve: (i) a fragment simulated particles V50 ballistic limit such that: V50 (FSP 20mm) > 1633 T2 - 1479 T + 1290 where T is the thickness plate (unit: inch) and the unit of V50 is feet/s. (ii) an armor piercing V50 ballistic limit such that: V50 (0.30cal AP M2) > -282 T2 + 1850 T + 610 where T is the thickness plate (unit: inch) and the unit of V50 is feet/s.


A motor vehicle body arrangement according to the invention has a longitudinal member arrangement (1, 3), a bumper crossmember (5) and a supporting element (7). The bumper crossmember is fastened to one end of the longitudinal member arrangement, and an end portion (6) of the bumper crossmember projects beyond the longitudinal member arrangement in the transverse direction. The supporting element is fastened to the end portion of the bumper crossmember and extends rearwards in the longitudinal direction of the vehicle over a predetermined length (a). The supporting element preferably extends substantially parallel to the longitudinal member arrangement. The supporting element is arranged or formed at a predetermined distance (b) from the longitudinal member arrangement. Furthermore, the supporting element according to the invention is designed and arranged in such a manner that, in the event of deformation of the end portion of the bumper crossmember as a consequence of a frontal collision of the motor vehicle, in particular a frontal collision with little overlap, the supporting element supports the end portion on the longitudinal member arrangement. Here, that is to say by means of the support, further deformation of the end portion in the direction of the longitudinal member arrangement is inhibited.


Patent
Constellium | Date: 2017-05-31

The invention relates to a method for cooling a sheet ingot made of an aluminium alloy, after the heat treatment for the metallurgical homogenisation of said ingot and before the hot-rolling thereof, characterised in that the cooling, representing a value of between 30 and 150C, is carried out at a speed of between 150 and 500C/h, with a homogeneity of less than 40C over all of the treated part of the ingot. The invention also relates to the facility allowing the implementation of said method and to said implementation.


Patent
Constellium | Date: 2017-01-11

The invention relates to a brazing metal sheet consisting of a series AA3xxx aluminum alloy core sheet, coated, on at least one surface, with a cladding layer made of a first so-called intermediate aluminum alloy containing 0.35 to 1.8 wt% manganese, less than 0.3 wt% of each of other elements, and a total of 1 wt% aluminum residue. Said series AA3xxx cladding layer is itself coated with a second series AA4xxx alloy cladding layer in which the alloy of the core metal sheet is selected, and the core metal sheet developed, such as to have an essentially recrystallized structure after brazing. The invention also relates to the use of such a metal sheet for manufacturing a supercharge air cooler heat exchanger or passenger compartment air conditioner evaporator heat exchanger, and to said exchangers themselves, manufactured from said metal sheets.


An aluminium alloy extruded product obtained by following steps: a) casting a billet from a 6xxx aluminium alloy comprising: Si: 0.3-1.5 wt. %; Fe: 0.1-0.3 wt. %; Mg: 0.3-1.5 wt. %; Cu(FR)La prsente invention concerne un produit extrud en alliage daluminium obtenu par les tapes suivantes : a) coule dune billette dun alliage daluminium 6xxx comprenant : Si : 0,3 1,5 % en poids; Fe: 0,1 0,3 % en poids; Mg: 0,3 1,5 % en poids; Cu


Grant
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: NMBP-08-2016 | Award Amount: 8.00M | Year: 2016

The overall aim of LoCoMaTech is, in the first place, to enable the novel HFQ process, (patented by ICL) in its latest most advanced form, which includes 10 recently patented refining technologies (TRL4), to be used for the manufacture of lightweight, high strength body and chassis structures and components for low-cost vehicles, by establishing a prototype, full scale pilot production line (TRL6), supported by a supply chain ranging from raw material to end of life. This will be the first low-cost technology in the world enabling manufacture of high-strength lightweight complex-shaped aluminium parts and low environmental impact. The 1st generation of HFQ technology has already been commercially used in manufacturing 4 types of niche vehicles. This project aims at bringing the materials and manufacturing cost significantly down, through introducing newly patented technological measures, by which the technology could be used for producing low-cost vehicles. The low-cost HFQ technology will be used first for mass production of aluminium car body and chassis structures (eventually for all vehicles), which will lead to substantial improvement in energy efficiency, performance and travel range of low-end vehicles. LoCoMaTech will construct a world first low-cost HFQ aluminium production line (prototype), targeting reduction of energy consumption per vehicle by 15.3-22%, and cost-effective weight savings from 8.55 to 2.16 /kg-saved and improvement of LCA environmental impact by 15.39-26.8%. LoCoMaTech plans to assist in creating 53 commercial production lines and 1700 jobs, in year 6 from the completion of the project. The potential market for low-cost HFQ technology for passenger cars alone is over 160 billion pa, and double this, if buses, trucks, trains and aircraft are considered. This will create huge wealth for Europe and place European automotive industry in a world leading position for lightweight manufacturing technologies for low-end vehicle production.


An aluminium alloy forged product obtained by following steps:a) casting a billet from a 6xxx aluminium alloy comprising: Si: 0.7-1.3 wt. %; Fe : 0.5 wt. %; Cu: 0.1-1.5 wt. %; Mn: 0.4-1.0 wt. %; Mg: 0.6-1.2 wt. %; Cr: 0.05-0.25 wt.%; Zr: 0.05-0.2 wt. %; Zn: 0.2 wt.%; Ti: 0.2 wt.% , the rest being aluminium and inevitable impurities;b) homogenising the cast billet, at a temperature T_(H), which is 5C to 80C lower than solidus temperature Ts, in the range of typically 500-560C, for a duration between 2 and 10 hours;c) quenching said billet down to room temperature by using water quench system;d) heating the homogenised billet to a temperature between (Ts - 5C) and (Ts - 125C);e) extruding said billet through a die to produce a solid section with an exit temperature (typically 530C) lower than Ts (typically 550C), and with an extruding ratio of at least 8;f) quenching the extruded product down to room temperature by using water quench system;g) stretching the extruded product to obtain a plastic deformation typically between 0.5% and 10%;h) heating cut-to-length extruded rod to forging temperature, typically between 400 and 520C;i) forging in heated mould between 150 and 350C;j) separate solutionising at a temperature between 530 and 560C for durations between 2 min. and 1 hour;k) water quenching the forged and solutionised material down to room temperature;l) room temperature ageing for a duration between 6 hours and 30 days;m) ageing to T6 temper by a one-or multiple-step heat treatment at temperatures ranging from 150 to 200C for holding times ranging from 2 to 20 hours.


A welded part comprising at least a 6xxx series aluminium alloy wrought product connected to the rest of the said welded part by a junction weld obtained by arc-welding, characterized in thata) the said arc-welding is made using a 5xxx series alloy filler wire andb) the said 6xxx series aluminium alloy of the wrought product has the following composition (contents expressed in percentages by weight):0.3 Si 1.0Fe 0.7Cu 0.1Mn 10.35 Mg 1.2Cr 0.35Zn 0.200.05 Ti 0.2V 0.2other elements and unavoidable impurities < 0.05 each and 0.15 total, rest aluminium wherein the ratio Mg/(Si-0.3*(Mn+Fe)) is higher than 1.0

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