EP 3839085 A1 20210623 - IMPROVED METHOD FOR MANUFACTURING A STRUCTURE COMPONENT FOR A MOTOR VEHICLE BODY
Title (en)
IMPROVED METHOD FOR MANUFACTURING A STRUCTURE COMPONENT FOR A MOTOR VEHICLE BODY
Title (de)
VERBESSERTES VERFAHREN ZUR HERSTELLUNG EINES STRUKTURTEILS FÜR EINE KRAFTFAHRZEUGKAROSSERIE
Title (fr)
PROCÉDÉ AMÉLIORÉ DE FABRICATION D'UN COMPOSANT DE STRUCTURE D'UNE CARROSSERIE DE VÉHICULE AUTOMOBILE
Publication
Application
Priority
EP 19306659 A 20191217
Abstract (en)
A method for manufacturing a rolled product for automobile bodywork or body structure with an alloy containing Si: 0.75 -1.10, Fe: max 0.4, Cu: 0.5 - 0.8, Mn: 0.1 - 0.4, Mg: 0.75 - 1, Ti: max 0.15, Cr: max 0.1 and V: max 0.1 is disclosed with several process steps from casting the ingot to forming and painting a car body part. The various possibilities of pre ageing of the sheet as well as of the heat treatment of the part offer advantageous material properties in forming, material strength and low sensitivity to the bake hardening process which can vary depending in the part location in the car body.
IPC 8 full level
C22C 21/02 (2006.01); C22C 21/08 (2006.01); C22F 1/043 (2006.01); C22F 1/05 (2006.01)
CPC (source: EP KR US)
C21D 8/0226 (2013.01 - KR US); C21D 8/0236 (2013.01 - KR US); C21D 8/0247 (2013.01 - KR); C21D 8/0263 (2013.01 - US); C22C 21/02 (2013.01 - EP KR US); C22C 21/08 (2013.01 - EP KR US); C22F 1/043 (2013.01 - EP KR); C22F 1/05 (2013.01 - EP KR US)
Citation (applicant)
- WO 2004113579 A1 20041229 - PECHINEY RHENALU [FR], et al
- US 2002039664 A1 20020404 - MAGNUSEN PAUL E [US], et al
- WO 03006697 A1 20030123 - CORUS ALUMINIUM WALZPROD GMBH [DE], et al
- EP 2581218 A1 20130417 - ALERIS ALUMINUM DUFFEL BVBA [BE]
- EP 1305179 B1 20050928 - NOTHELFER GMBH [DE]
- EP 1601478 B1 20071017 - ALCAN RHENALU [FR]
- EP 1702995 A1 20060920 - NIPPON LIGHT METAL CO [JP]
- WO 2018185425 A1 20181011 - CONSTELLIUM NEUF BRISACH [FR]
- P. E. FORTIN ET AL.: "An optimized Al alloy for auto body sheet applications", SAE TECHNICAL CONFERENCE, March 1984 (1984-03-01)
- M. J. BULL ET AL.: "Al sheet alloys for structural and skin applications", 25TH ISATA SYMPOSIUM, June 1992 (1992-06-01)
Citation (search report)
- [XA] US 2018119261 A1 20180503 - DAS SAZOL KUMAR [US], et al
- [XA] US 2018171452 A1 20180621 - FLOREY GUILLAUME [CH], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3839085 A1 20210623; EP 3839085 B1 20230426; CA 3162027 A1 20210624; CN 114829644 A 20220729; EP 4077753 A1 20221026; JP 2023506278 A 20230215; KR 20220113793 A 20220816; US 2023008838 A1 20230112; WO 2021122621 A1 20210624
DOCDB simple family (application)
EP 19306659 A 20191217; CA 3162027 A 20201215; CN 202080087196 A 20201215; EP 2020086256 W 20201215; EP 20842558 A 20201215; JP 2022536960 A 20201215; KR 20227024163 A 20201215; US 202017781682 A 20201215