公开(公告)号：US12152292B2

公开(公告)日：2024-11-26

申请号：US17599661

申请日：2020-03-23

Applicant: Airbus SAS

Inventor： Achim Bürger ,  Andreas Harald Bach ,  Sabine Maria Spangel ,  Philippe Meyer

IPC: C22C21/18 ,  C21D9/46 ,  C22C21/14 ,  C22C21/16 ,  C22F1/05 ,  C22F1/057

Abstract: A method of producing an integrated monolithic aluminum structure, comprising: providing an aluminum alloy plate with a thickness of at least 38.1 mm, wherein the plate is a 2xxx-series alloy in a T3-temper and has a composition comprising, in wt. %: Cu 3.8-4.5, Mn 0.3-0.8, Mg 1.1-1.6, Si up to 0.15, Fe up to 0.20, Cr up to 0.10, Zn up to 0.25, Ti up to 0.15, Ag up to 0.10, balance aluminum; optionally pre-machining the plate to an intermediate machined structure; high-energy hydroforming the plate or intermediate structure against a rigid die forming surface having a desired curvature contour of the integrated monolithic aluminum structure, causing the plate or the intermediate structure to conform to the forming surface contour; machining or mechanical milling the high-energy formed structure to a near-final or final machined integrated monolithic aluminum structure; ageing the final integrated monolithic aluminum structure to a desired temper.

公开(公告)号：US12157938B2

公开(公告)日：2024-12-03

申请号：US17273072

申请日：2019-09-04

Applicant: Airbus SAS

Inventor： Philippe Meyer ,  Sunil Khosla ,  Achim Bürger ,  Sabine Maria Spangel ,  Andreas Harald Bach

IPC: C22F1/057 ,  B21D26/02 ,  B21D53/92 ,  C22C21/14 ,  C22C21/16 ,  C22C21/18

Abstract: A method of producing an integrated monolithic aluminum structure, the method including the steps of: (a) providing an aluminum alloy plate with a predetermined thickness of at least 3 mm, wherein the aluminum alloy plate is a 2xxx-series alloy provided in an F-temper or an O-temper; (b) optionally pre-machining of the aluminum alloy plate to an intermediate machined structure; (c) high-energy hydroforming of the plate or optional intermediate machined structure against a forming surface of a rigid die having a contour in accordance with a desired curvature of the integrated monolithic aluminum structure, the high-energy hydroforming causing the plate or the intermediate machined structure to conform to the contour of the forming surface to at least one of a uniaxial curvature and a biaxial curvature; (d) solution heat-treating and cooling of the high-energy hydroformed structure; (e) machining and (f) ageing of the final integrated monolithic aluminum structure.