Invention Grant
- Patent Title: Method of producing a high-energy hydroformed structure from a 7XXX-series alloy
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Application No.: US17291887Application Date: 2019-10-29
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Publication No.: US12291769B2Publication Date: 2025-05-06
- Inventor: Sunil Khosla , Philippe Meyer , 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: EP18205725 20181112
- International Application: PCT/EP2019/079533 WO 20191029
- International Announcement: WO2020/099124 WO 20200522
- Main IPC: C22F1/053
- IPC: C22F1/053 ; B21D26/021 ; C22C21/10

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 25.4 mm, wherein the aluminum alloy plate is a 7xxx-series alloy provided in a W-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
- US20220002853A1 METHOD OF PRODUCING A HIGH-ENERGY HYDROFORMED STRUCTURE FROM A 7XXX-SERIES ALLOY Public/Granted day:2022-01-06
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