EP 1472380 B1 20081105 - AL-SI-MG ALLOY SHEET METAL FOR MOTOR CAR BODY OUTER PANEL
Title (en)
AL-SI-MG ALLOY SHEET METAL FOR MOTOR CAR BODY OUTER PANEL
Title (de)
BLECH AUS AL-SI-MG-LEGIERUNG FÜR KARROSERIE VON KRAFTFAHRZEUGEN
Title (fr)
TOLE EN ALLIAGE AL-SI-MG POUR PEAU DE CARROSSERIE AUTOMOBILE
Publication
Application
Priority
- FR 0300318 W 20030203
- FR 0201346 A 20020205
Abstract (en)
[origin: WO03066919A2] The invention concerns a sheet metal for a motor vehicle body outer panel, having a thickness ranging between 0.8 and 1.2 mm, consisting in wt. % of: Fe: 0.25-0.40 and preferably: 0.25-0.35; Si: 0.90-1.20 and preferably: 0.95-1.10; Cu: 0.10-0.25 and preferably: 0.15-0.20; Mg: 0.35-0.50 and preferably: 0.40-0.50; Mn: 0.05-0.20 and preferably: 0.08-0.15; other elements < 0.05 each and < 0.15 in total, the rest being aluminium, having after solution heat treatment, quenching, pre-tempering or reversion, and maturation at room temperature for 3 weeks to 6 months, an L R0.2 direction yield strength less than 160 MPa's, and preferably less than 150 MPa's. A yield strength > 180 MPa's can be obtained on the body stamping part after the paints have been cured. The inventive sheet metal enable to reduce the thickness of parts while satisfying all the other required properties.
IPC 8 full level
B21B 3/00 (2006.01); C22C 21/02 (2006.01); C22F 1/00 (2006.01); C22F 1/043 (2006.01)
CPC (source: EP KR US)
C22C 21/02 (2013.01 - EP KR US); C22F 1/043 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03066919 A2 20030814; WO 03066919 A3 20040408; AT E413476 T1 20081115; AU 2003216971 A1 20030902; AU 2003216971 A8 20030902; CA 2471501 A1 20030814; CA 2471501 C 20100511; DE 03712292 T1 20050331; DE 60324526 D1 20081218; EP 1472380 A2 20041103; EP 1472380 B1 20081105; ES 2316738 T3 20090416; FR 2835533 A1 20030808; FR 2835533 B1 20041008; JP 2005525462 A 20050825; JP 2009133006 A 20090618; KR 100964855 B1 20100624; KR 20040075980 A 20040830; US 2005028894 A1 20050210
DOCDB simple family (application)
FR 0300318 W 20030203; AT 03712292 T 20030203; AU 2003216971 A 20030203; CA 2471501 A 20030203; DE 03712292 T 20030203; DE 60324526 T 20030203; EP 03712292 A 20030203; ES 03712292 T 20030203; FR 0201346 A 20020205; JP 2003566264 A 20030203; JP 2008312816 A 20081209; KR 20047012157 A 20030203; US 50265904 A 20040818