Global Patent Index - EP 1672088 A1

EP 1672088 A1 20060621 - Method for manufacturing a body featuring very high mechanical properties, forming by cold drawing from a rolled steel sheet, in particular hot rolled and coated sheet

Title (en)

Method for manufacturing a body featuring very high mechanical properties, forming by cold drawing from a rolled steel sheet, in particular hot rolled and coated sheet

Title (de)

Verfahren zum Herstellen eines Bauteils mit sehr guten mechanischen Eigenschaften, Umformung durch kaltes Tiefziehen aus gewalztem, insbesondere warmgewalztem und beschichtetem Stahlblech

Title (fr)

Procédé de réalisation d'une pièce à très hautes caractéristiques mécaniques, mise en forme par emboutissage à froid, à partir d'une bande de tôle d'acier laminée et notamment laminée à chaud et revêtue

Publication

EP 1672088 A1 20060621 (FR)

Application

EP 06002618 A 20010404

Priority

  • EP 01400861 A 20010404
  • FR 0004427 A 20000407

Abstract (en)

The procedure for making stamped components with very high mechanical properties from sheet steel consists of cutting the sheet to make blanks, stamping the blanks to form the components, and applying before or after stamping a metallic surface coating that provides protection against corrosion, against decarburisation of the steel, and an optional lubrication function. Surplus steel necessary for the stamping operation is removed by cutting. The surface coating can be of zinc or a zinc-based alloy between 5 and 30 mcm thick; it can be of zinc and iron or zinc-iron-aluminium, and the pre-coated steel can be subjected to a temperature of over 700 degrees C before stamping.

IPC 8 full level

B21D 22/02 (2006.01); C23C 2/26 (2006.01); B21D 22/20 (2006.01); B21J 5/00 (2006.01); B21J 13/02 (2006.01); B23P 13/00 (2006.01); C21D 1/02 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/32 (2006.01); C23C 2/06 (2006.01); C23C 2/28 (2006.01); C25D 7/00 (2006.01)

CPC (source: EP US)

B21D 22/20 (2013.01 - EP US); C21D 8/0278 (2013.01 - EP US); C23C 2/02 (2013.01 - EP US); C23C 2/06 (2013.01 - EP US); C23C 2/26 (2013.01 - EP US); C23C 2/28 (2013.01 - EP US); C23C 2/29 (2022.08 - EP US); C23C 2/40 (2013.01 - EP US); C21D 1/673 (2013.01 - EP US)

Citation (search report)

Citation (third parties)

Third party :

"Materials science and technology", vol. 7, 1992, article "Constitution and properties of steels: Formeln zur Berechnung der Austenitisierungstemperatur", XP003021411

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

EP 1143029 A1 20011010; EP 1143029 B1 20060524; AR 028319 A1 20030507; AT E327353 T1 20060615; AT E478167 T1 20100915; BR 0102747 A 20011204; BR PI0102747 B1 20160830; BR PI0117371 B1 20160614; CA 2343340 A1 20011007; CA 2343340 C 20080708; DE 01400861 T1 20050504; DE 10006299 T1 20120126; DE 20122563 U1 20060511; DE 60119826 D1 20060629; DE 60119826 T2 20061214; DE 60142859 D1 20100930; DK 1143029 T3 20060918; EP 1672088 A1 20060621; EP 1672088 B1 20100818; EP 1672088 B2 20150128; EP 2224034 A1 20100901; EP 2224034 B1 20130717; ES 2263567 T3 20061216; ES 2350399 T3 20110121; ES 2350399 T5 20151110; ES 2428638 T3 20131108; FR 2807447 A1 20011012; FR 2807447 B1 20021011; JP 2001353548 A 20011225; JP 2005047001 A 20050224; JP 3663145 B2 20050622; JP 3825456 B2 20060927; PT 1143029 E 20060929; PT 1672088 E 20101104; US 2001042393 A1 20011122; US 6564604 B2 20030520

DOCDB simple family (application)

EP 01400861 A 20010404; AR P010101657 A 20010406; AT 01400861 T 20010404; AT 06002618 T 20010404; BR 0102747 A 20010402; BR 0117371 A 20010402; CA 2343340 A 20010406; DE 01400861 T 20010404; DE 10006299 T 20010404; DE 20122563 U 20010404; DE 60119826 T 20010404; DE 60142859 T 20010404; DK 01400861 T 20010404; EP 06002618 A 20010404; EP 10006299 A 20010404; ES 01400861 T 20010404; ES 06002618 T 20010404; ES 10006299 T 20010404; FR 0004427 A 20000407; JP 2001109121 A 20010406; JP 2004221430 A 20040729; PT 01400861 T 20010404; PT 06002618 T 20010404; US 82716701 A 20010406