公开(公告)号：US11174535B2

公开(公告)日：2021-11-16

申请号：US15515891

申请日：2015-10-01

Applicant: CONSTELLIUM ISSOIRE

Inventor： Juliette Chevy ,  Bernard Bes ,  Frank Eberl

IPC: C22C21/16 ,  C22F1/057

Abstract: The invention relates to a plate with a thickness of 0.5 to 9 mm with an essentially recrystallized granular structure, made from an alloy based on aluminum, comprising 2.8 to 3.2% by weight Cu, 0.5 to 0.8% by weight Li, 0.1 to 0.3% by weight Ag, 0.2 to 0.7% by weight Mg, 0.2 to 0.6% by weight Mn, 0.01 to 0.15% by weight Ti, a quantity of Zn below 0.2% by weight, a quantity of Fe and Si of less than or equal to 0.1% by weight each, and unavoidable impurities to a proportion of less than or equal to 0.05% by weight each and 0.15% by weight in total, said plate being obtained by a method comprising casting, homogenization, hot rolling and optionally cold rolling, solution heat treatment, quenching and aging. The plates according to the invention are advantageous in particular for the manufacture of aircraft fuselage panels.

公开(公告)号：US10400312B2

公开(公告)日：2019-09-03

申请号：US15025147

申请日：2014-09-26

Applicant: CONSTELLIUM ISSOIRE

Inventor： Bernard Bes

IPC: C22C21/14 ,  C22F1/057 ,  C22C21/16 ,  C22C21/12 ,  C22F1/04 ,  B64C3/26 ,  B22D21/00 ,  B22D27/20

Abstract: The invention relates to a rolled product with state T351, having thickness of between 15 and 50 mm, made from aluminum alloy having the following composition, in % by weight, Cu: 3.85-4.15; Mg: 0.95-1.25; Mn: 0.45-0.57; Zr: 0.09-0.16; Ti: 0.005-0.1; Fe:

公开(公告)号：US11667994B2

公开(公告)日：2023-06-06

申请号：US16184046

申请日：2018-11-08

Applicant: CONSTELLIUM ISSOIRE

Inventor： Frank Eberl ,  Bernard Bes

IPC: C22C21/12 ,  C22C21/16 ,  C22F1/057

CPC classification number: C22C21/12 ,  C22C21/16 ,  C22F1/057

Abstract: The invention concerns a process to manufacture a flat-rolled product, notably for the aeronautic industry containing aluminum alloy, in which, notably a flattening and/or stretching is performed with a cumulated deformation of at least 0.5% and less than 3%, and a short heat-treatment is performed in which the sheet reaches a temperature between 130° C. and 170° C. for a period of 0.1 to 13 hours. The invention notably makes it possible to simplify the forming process of fuselage skins and to improve the balance between static mechanical strength properties and damage tolerance properties.

公开(公告)号：US20190316232A1

公开(公告)日：2019-10-17

申请号：US16455897

申请日：2019-06-28

Applicant: CONSTELLIUM ISSOIRE

Inventor： Bernard Bes

IPC: C22C21/16 ,  B22D27/20 ,  C22C21/14 ,  C22C21/12 ,  B64C3/26 ,  C22F1/057 ,  B22D21/00 ,  C22F1/04

Abstract: The invention relates to a rolled product with state T351, having thickness of between 15 and 50 mm, made from aluminium alloy having the following composition, in % by weight, Cu: 3.85-4.15; Mg: 0.95-1.25; Mn: 0.45-0.57; Zr: 0.09-0.16; Ti: 0.005-0.1; Fe:

公开(公告)号：US10400313B2

公开(公告)日：2019-09-03

申请号：US14783449

申请日：2014-04-07

Applicant: CONSTELLIUM ISSOIRE

Inventor： Christophe Sigli ,  Bernard Bes ,  Frank Eberl

IPC: C22C21/18 ,  C22C21/12 ,  C22C21/16 ,  C22F1/057 ,  B22D7/00 ,  C22C21/14

Abstract: A method for producing a rolled product 0.5 to 10 mm thick made from an aluminum alloy comprising, in particular, copper and lithium, in which, after solution annealing and quenching, a short heat treatment is carried out in which the sheet reaches a temperature of between 145° C. and 175° C. for 0.1 to 45 minutes, the speed of heating being between 3 and 600° C./min. The sheet obtained at the end of the method according to the invention has high corrosion resistance and is capable of being shaped for producing a structural element for an aircraft, in particular an aircraft fuselage skin.