EP 1013785 B1 20061025 - Process for manufacturing of a part from a hot-rolled sheet
Title (en)
Process for manufacturing of a part from a hot-rolled sheet
Title (de)
Herstellungsverfahren für Formteile aus warmgewalztem Stahlblech
Title (fr)
Procédé de réalisation d'une pièce à partir d'une bande de tôle d'acier laminée à chaud
Publication
Application
Priority
FR 9816477 A 19981224
Abstract (en)
[origin: EP1013785A1] A component is produced from a strip of rolled (especially hot-rolled) sheet steel, by coating with aluminum or its alloy and pressing operations. The process involves: (a) coating the rolled sheet with a metal or an alloy assuring protection of the surface and the steel; (b) raising the temperature of the coated sheet for forming; (c) producing, at the surface, an intermetallic alloy composite assuring protection against corrosion and decarburation of the steel, with the intermetallic composite able to assure a lubrication function; (d) forming the coated sheet, notably by pressing; (e) cooling the formed component in order to confer increased hardness of the steel and increased surface hardness in the coating. The metal used for coating the steel sheet is aluminum or an aluminum alloy, so that the intermetallic alloy composite is made up of aluminum, iron and silicon.
IPC 8 full level
C23C 2/12 (2006.01); C23C 2/26 (2006.01); C23C 2/28 (2006.01); C23C 2/40 (2006.01); C23C 26/00 (2006.01)
CPC (source: EP US)
C21D 1/673 (2013.01 - EP); C21D 9/48 (2013.01 - EP); C23C 2/12 (2013.01 - EP); C23C 2/26 (2013.01 - EP US); C23C 2/28 (2013.01 - EP US); C23C 2/29 (2022.08 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1013785 A1 20000628; EP 1013785 B1 20061025; EP 1013785 B2 20150812; AT E343658 T2 20061115; DE 69933751 D1 20061207; DE 69933751 T2 20071004; DE 69933751 T3 20151224; DK 1013785 T3 20070115; DK 1013785 T4 20151123; ES 2274609 T3 20070516; ES 2274609 T5 20151120; FR 2787735 A1 20000630; FR 2787735 B1 20010202; PT 1013785 E 20070131
DOCDB simple family (application)
EP 99403227 A 19991221; AT 99403227 T 19991221; DE 69933751 T 19991221; DK 99403227 T 19991221; ES 99403227 T 19991221; FR 9816477 A 19981224; PT 99403227 T 19991221