Invention Grant
- Patent Title: Method of producing a high-energy hydroformed structure from a 2XXX-series alloy
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Application No.: US17273072Application Date: 2019-09-04
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Publication No.: US12157938B2Publication Date: 2024-12-03
- Inventor: Philippe Meyer , Sunil Khosla , Achim Bürger , Sabine Maria Spangel , Andreas Harald Bach
- Applicant: Airbus SAS
- Applicant Address: FR Blagnac
- Assignee: Airbus SAS
- Current Assignee: Airbus SAS
- Current Assignee Address: FR Blagnac
- Agency: Greer, Burns & Crain, Ltd.
- Priority: EP18192744 20180905
- International Application: PCT/EP2019/073531 WO 20190904
- International Announcement: WO2020/049021 WO 20200312
- Main IPC: C22F1/057
- 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.
Public/Granted literature
- US20210340657A1 METHOD OF PRODUCING A HIGH-ENERGY HYDROFORMED STRUCTURE FROM A 2XXX-SERIES ALLOY Public/Granted day:2021-11-04
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