公开(公告)号：US20210310108A1

公开(公告)日：2021-10-07

申请号：US17051659

申请日：2019-04-24

Applicant: CONSTELLIUM ISSOIRE

Inventor： Fanny MAS ,  David BARBIER ,  Samuel JUGE ,  Armelle DANIELOU ,  Gaëlle POUGET ,  Nicolas BAYONA-CARRILLO

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

Abstract: The invention relates to a product based on an aluminium alloy comprising, as percentages by weight, 4.0 to 4.6% by weight of Cu, 0.7 to 1.2% by weight of Li, 0.5 to 0.65% by weight of Mg, 0.10 to 0.20% by weight of Zr, 0.15 to 0.30% by weight of Ag, 0.25 to 0.45% by weight of Zn, 0.05 to 0.35% by weight of Mn, at most 0.20% by weight of Fe+Si, at least one element selected from Cr, Sc, Hf, V and Ti, the amount of said element, if selected, being from 0.05 to 0.3% by weight for Cr and for Sc, 0.05 to 0.5% by weight for Hf and for V and 0.01 to 0.15% by weight for Ti, the other elements being at most 0.05% by weight each and 0.15% by weight in total, the remainder being aluminium. The invention also relates to a method for obtaining such a product and to the use thereof as an aircraft structural element.

公开(公告)号：US20210189538A1

公开(公告)日：2021-06-24

申请号：US17051672

申请日：2019-04-24

Applicant: CONSTELLIUM ISSOIRE

Inventor： Fanny MAS ,  David BARBIER ,  Samuel JUGE ,  Armelle DANIELOU ,  Gaëlle POUGET ,  Nicolas BAYONA-CARRILLO

IPC: C22F1/057 ,  C22C21/18 ,  C22C21/16 ,  C22C21/14 ,  B21B3/00

Abstract: The invention relates to a manufacturing method in which an alloy is prepared that comprises 3.5 to 4.7 wt % of Cu; 0.6 to 1.2 wt % of Li; 0.2 to 0.8 wt % of Mg; 0.1 to 0.2 wt % of Zr; 0.0 to 0.3 wt % of Ag; 0.0 to 0.8 wt % of Zn; 0.0 to 0.5 wt % of Mn; at most 0.20 wt % of Fe+Si; optionally an element selected from Cr, Sc, Hf and V, the amount of said element, if selected, being from 0.05 to 0.3 wt % for Cr and for Sc, 0.05 to 0.5 wt % for Hf and for V; the other elements being at most 0.05 wt % each and 0.15 wt % in total, a refiner is introduced, the alloy is cast in a crude form, homogenized, hot-worked, solution heat-treated, quenched, cold-worked, and tempered, in which the refiner contains particles of TiC and/or the cold working is between 8 and 16%. The products obtained by the method according to the invention have an advantageous compromise between mechanical strength and toughness.

公开(公告)号：US20160144946A1

公开(公告)日：2016-05-26

申请号：US14899743

申请日：2014-06-18

Applicant: CONSTELLIUM ISSOIRE

Inventor： Armelle DANIELOU ,  Gaelle POUGET ,  Christophe SIGLI

IPC: B64C3/26 ,  C22C21/14 ,  C22C1/02 ,  C21D1/30 ,  C21D8/00 ,  B22D21/00 ,  C22F1/057 ,  C22C21/16

CPC classification number: B64C3/26 ,  B22D21/007 ,  C21D1/30 ,  C21D8/00 ,  C22C1/026 ,  C22C21/12 ,  C22C21/14 ,  C22C21/16 ,  C22F1/057

Abstract: The invention relates to an extrados structural element made from an aluminum, copper and lithium alloy and a method for manufacturing same. In the method according to the invention, an alloy with composition (in wt %) 4.2 to 5.2 Cu, 0.9 to 1.2 Li, 0.1 to 0.3 Ag, 0.1 to 0.25 Mg, 0.08 to 0.18 Zr, 0.01 to 0.15 Ti, optionally up to 0.2 Zn, optionally up to 0.6 Mn, an Fe and Si content level less than or equal to 0.1% each, and other element with a content level less than or equal to 0.05% each and 0.15% in total, the aluminum is poured, homogenized, deformed hot and optionally cold, placed in a solution at a temperature of at least 515° C., pulled from 0.5 to 5% and annealed. The combination in particular of the magnesium, copper and manganese content with the temperature in solution can reach a very advantageous elasticity under compression limit. Thus, the products according to the invention having a thickness of at least 12 mm have an elasticity under compression limit in the longitudinal direction of at least 645 MPa and an elongation in the longitudinal direction of at least 7%.

Abstract translation: 本发明涉及由铝，铜和锂合金制成的外部结构元件及其制造方法。 在根据本发明的方法中，组合物（重量％）为4.2〜5.2的Cu，0.9〜1.2的Li，0.1〜0.3的Ag，0.1〜0.25的Mg，0.08〜0.18的Zr，0.01〜0.15的Ti， 0.2 Zn，任选高达0.6Mn，Fe和Si含量各自小于或等于0.1％，其他元素的含量均小于或等于0.05％，总共为0.15％，将铝倒入， 均质化，变形的热和任选冷的，在至少515℃的温度下放置在溶液中，从0.5至5％拉伸并退火。 特别是镁，铜和锰含量与溶液中的温度的组合在压缩极限下可以达到非常有利的弹性。 因此，根据本发明的具有至少12mm厚度的产品在纵向的压缩极限下具有至少645MPa的弹性，并且在纵向上的伸长率至少为7％。

公开(公告)号：US20160355916A1

公开(公告)日：2016-12-08

申请号：US15102965

申请日：2014-12-11

Applicant: CONSTELLIUM ISSOIRE

Inventor： Armelle DANIELOU ,  Soizic BLAIS ,  Philippe JARRY ,  Olivier RIBAUD ,  Bernard VALENTIN

IPC: C22F1/057 ,  C22C21/16 ,  C22C21/14 ,  C22C1/02 ,  B22D11/00 ,  B21J5/00 ,  B22D11/059 ,  B22D11/04 ,  B22D21/00 ,  B21B1/22 ,  B21C23/21 ,  C22C21/18 ,  B22D11/041

CPC classification number: C22F1/057 ,  B21B1/22 ,  B21B2003/001 ,  B21C23/212 ,  B21J5/00 ,  B22D11/003 ,  B22D11/0408 ,  B22D11/041 ,  B22D11/059 ,  B22D21/007 ,  C22C1/026 ,  C22C21/12 ,  C22C21/14 ,  C22C21/16 ,  C22C21/18

Abstract: The invention relates to a method for manufacturing an aluminium alloy product including the steps of: creating a bath of liquid metal in an aluminium-copper-lithium alloy, casting said alloy by vertical semi-continuous casting so as to obtain a plate with thickness T and width W such that, during solidification, the hydrogen content of said liquid metal bath (1) is lower than 0.4 ml/100 g, the oxygen content above the liquid surface (14, 15) is less than 0.5% by volume.

Abstract translation: 本发明涉及一种铝合金制品的制造方法，包括以下步骤：在铝 - 铜 - 锂合金中形成液态金属浴，通过垂直半连续铸造铸造所述合金，以获得厚度为T 和宽度W，使得在固化期间，所述液体金属浴（1）的氢含量低于0.4ml / 100g，液面上的氧含量（14,15）小于0.5体积％。