公开(公告)号：US20210388470A1

公开(公告)日：2021-12-16

申请号：US17284373

申请日：2019-10-07

Applicant: CONSTELLIUM ISSOIRE

Inventor： Juliette CHEVY ,  Jean-Christophe EHRSTROM ,  Pablo LORENZINO

IPC: C22C21/16 ,  C22C21/18 ,  C22C1/02 ,  C22F1/057 ,  B64C1/00

Abstract: The invention relates to a thin metal sheet which is made of an alloy based on substantially recrystallized aluminum and which has a thickness of 0.25 to 12 mm, the alloy comprising, in percent by weight, Cu 3.4-4.0; Mg 0.5-0.8; Mn 0.1-0.7; Fe #0.15; Si #0.15; Zr #0.04; Ag #0.65; Zn #0.5; inevitable impurities #0.05 each and #0.15 in total, the remainder consisting of aluminum. The invention also relates to a process for manufacturing such a metal sheet and to the use thereof as a fuselage panel or sheet metal for the production of composite products such as fiber metal laminates (FML) for wing or fuselage applications in the aeronautical industry.

公开(公告)号：US20190040508A1

公开(公告)日：2019-02-07

申请号：US16074661

申请日：2017-02-03

Applicant: CONSTELLIUM ISSOIRE

Inventor： Jean-Christophe EHRSTROM ,  Carla DA FONSECA BARBATTI

IPC: C22F1/057 ,  C22C21/16 ,  C22C21/18 ,  C22C21/14

Abstract: The invention relates to a rolled product having a thickness of at least 50 mm made of aluminium alloy comprising, in % by weight, 2.2% to 3.9% of Cu, 0.7% to 1.8% of Li, 0.1% to 0.8% of Mg, 0.1% to 0.6% of Mn; 0.01% to 0.15% of Ti, at least one element chosen from Zn and Ag, the amount of said element, if it is chosen, being 0.2% to 0.8% for Zn and 0.1% to 0.5% for Ag, optionally at least one element chosen from Zr, Cr, Sc, Hf, and V, the amount of said element, if it is chosen, being 0.04% to 0.18% for Zr, 0.05% to 0.3% for Cr and for Sc, 0.05% to 0.5% for Hf and for V, less than 0.1% of Fe, less than 0.1% of Si, the remainder being aluminium and inevitable impurities, having a content of less than 0.05% each and 0.15% in total; characterized in that its granular structure is predominantly recrystallised between ¼ and ½ thickness. The invention also relates to the process for manufacturing such a product. The products according to the invention are advantageously used in aircraft construction, in particular for the production of an aircraft wing spar or rib.

公开(公告)号：US20160060741A1

公开(公告)日：2016-03-03

申请号：US14781097

申请日：2014-04-01

Applicant: CONSTELLIUM ISSOIRE

Inventor： Juliette CHEVY ,  Bernard BES ,  Frank EBERL ,  Jean-Christophe EHRSTROM

IPC: C22F1/057 ,  C22C21/14 ,  B22D21/00 ,  C22C21/16

CPC classification number: C22F1/057 ,  B22D21/007 ,  C22C21/14 ,  C22C21/16

Abstract: The invention concerns a sheet 0.5 to 8 mm thick made from aluminium alloy. The sheet can be obtained by a method comprising casting, homogenising, hot rolling and optionally cold rolling, solution heat treatment, quenching and tempering, the composition and the tempering being combined in such a way that the elasticity limit in the longitudinal direction Rp0.2(L) is between 395 and 435 MPa. A sheet according to the invention is particularly advantageous for producing aircraft fuselage panels.

Abstract translation: 本发明涉及一种0.5至8毫米厚的由铝合金制成的片材。 该片材可以通过铸造，均质，热轧和任选的冷轧，固溶热处理，淬火和回火的方法获得，组合物和回火组合，使得纵向R弹性极限Rp0.2 （L）在395和435MPa之间。 根据本发明的片材对于生产飞机机身面板是特别有利的。