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1. WO2020108932 - Method of producing a high-energy hydroformed structure from an Al-Mg-Sc alloy

Publication Number WO/2020/108932
Publication Date 04.06.2020
International Application No. PCT/EP2019/080345
International Filing Date 06.11.2019
IPC
B21D 26/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
26Shaping without cutting otherwise than by using rigid devices or tools or yieldable or resilient pads, e.g. shaping by applying fluid pressure or magnetic forces
02by applying fluid pressure
06by shock waves
08generated by explosives, e.g. chemical explosives
B21D 26/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
26Shaping without cutting otherwise than by using rigid devices or tools or yieldable or resilient pads, e.g. shaping by applying fluid pressure or magnetic forces
02by applying fluid pressure
06by shock waves
12initiated by spark discharge
B21D 26/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
26Shaping without cutting otherwise than by using rigid devices or tools or yieldable or resilient pads, e.g. shaping by applying fluid pressure or magnetic forces
02by applying fluid pressure
06by shock waves
10generated by evaporation, e.g. of wire, of liquids
C22C 21/06 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
06with magnesium as the next major constituent
B21D 26/053 2011.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
26Shaping without cutting otherwise than by using rigid devices or tools or yieldable or resilient pads, e.g. shaping by applying fluid pressure or magnetic forces
02by applying fluid pressure
053characterised by the material of the blanks
B21D 26/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
26Shaping without cutting otherwise than by using rigid devices or tools or yieldable or resilient pads, e.g. shaping by applying fluid pressure or magnetic forces
02by applying fluid pressure
06by shock waves
CPC
B21D 26/053
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
26Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
02by applying fluid pressure
053characterised by the material of the blanks
B21D 26/06
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
26Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
02by applying fluid pressure
06by shock waves
B21D 53/92
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
53Making other particular articles
92other parts for aircraft
C22C 21/06
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
06with magnesium as the next major constituent
Applicants
  • ALERIS ROLLED PRODUCTS GERMANY GMBH [DE]/[DE]
Inventors
  • BÜRGER, Achim
  • MEYER, Philippe
  • BACH, Andreas Harald
  • RUMPF, Philipp Daniel
  • SPANGEL, Sabine Maria
Agents
  • MÜLLER SCHUPFNER & PARTNER
Priority Data
18208368.326.11.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) Method of producing a high-energy hydroformed structure from an Al-Mg-Sc alloy
(FR) PROCÉDÉ DE PRODUCTION D'UNE STRUCTURE HYDROFORMÉE À HAUTE ÉNERGIE À PARTIR D'UN ALLIAGE D'AL-MG-SC
Abstract
(EN)
The invention relates to a method of producing an integrated monolithic aluminium structure, the method comprising the steps of: (a) providing an AlMgSc-series aluminium alloy rolled productwith a predetermined thickness of at least 2mm; (b) optionally pre-machining of the aluminium alloy rolled productto 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 aluminium structure, the high energy forming 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) annealing and cooling of the high-energy hydroformedstructure; (e) machining into a near-final or final integrated monolithic aluminium structure.
(FR)
L'invention concerne un procédé de production d'une structure en aluminium monolithique intégrée, le procédé comprenant les étapes consistant à : (a) utiliser un produit laminé en alliage d'aluminium de type Al-Mg-Sc présentant une épaisseur prédéterminée d'au moins 2 mm; (b) éventuellement, pré-usiner le produit laminé en alliage d'aluminium en une structure usinée intermédiaire; (c) hydroformer à haute énergie la plaque ou la structure usinée intermédiaire éventuelle contre une surface de formage d'une matrice rigide présentant un contour conformément à une courbure souhaitée de la structure d'aluminium monollithique intégrée, le formage à haute énergie amenant la plaque ou la structure usinée intermédiaire à épouser le contour de la surface de formage selon au moins une courbure uniaxiale et une courbure biaxiale; (d) recuire et refroidir la structure hydroformée à haute énergie; (e) usiner en une structure d'aluminium monolithique intégrée finale ou quasi-finale.
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