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Constellium France patents (2015 archive)


Recent patent applications related to Constellium France. Constellium France is listed as an Agent/Assignee. Note: Constellium France may have other listings under different names/spellings. We're not affiliated with Constellium France, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "C" | Constellium France-related inventors


10/22/15 / #20150299837

Method for manufacturing a structural element having a variable thickness for aircraft production

The invention relates to the method for manufacturing a rolled product of variable thickness made of heat-treatable aluminum alloy in which hot rolling is performed to achieve a variation in thickness of at least 10% lengthwise between the thickest part and the thinnest part; the rolled product of variable thickness obtained undergoes solution heat-treatment and quenching with permanent set of at least 1% in the thickest part before natural or artificial ageing. The products obtained according to the invention exhibit improved mechanical strength of at least 5% in the thinnest part and improved fracture toughness of at least 15% in the thickest part. ... Constellium France

09/10/15 / #20150255253

Vacuum chamber elements made of aluminum alloy

The invention relates to a vacuum chamber element obtained by machining and surface treatment of a plate of thickness at least equal to 10 mm of aluminum alloy, composed as follows (as a percentage by weight), si: 0.4-0.7; mg: 0.4-0.7; ti 0.01-<0.15, fe<0.25; cu<0.04; mn<0.4; cr 0.01-<0.1; zn<0.04; other elements <0.05 each and <0.15 in total, the rest aluminum. The invention also relates to a manufacturing method for a vacuum chamber element wherein successively a plate with a thickness of at least 10 mm of aluminum alloy of series 5xxx or series 6xxx is provided, said plate is machined to a vacuum chamber element, said element is degreased and/or pickled, it is anodized at a temperature of between 10 and 30° c. ... Constellium France

07/02/15 / #20150184269

Method for producing an aluminium alloy foam by moulding

The invention concerns a method for producing an aluminium alloy foam, consisting essentially of the aluminium alloy, in molten form, infiltrating the interstices of a preform consisting of silicon elastomer elements, by means of a conventional moulding process, typically a low-pressure process, followed by the elimination of the preform broken down into silica powder during the moulding cycle and/or an additional baking cycle.. . ... Constellium France








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