EP 1490187 B1 20101229 - A METHOD FOR MANUFACTURING AN ULTRA-HIGH-TENSILE, STRETCH FORMED OR STRETCH BENT SHEET METAL PRODUCT OF STEEL
Title (en)
A METHOD FOR MANUFACTURING AN ULTRA-HIGH-TENSILE, STRETCH FORMED OR STRETCH BENT SHEET METAL PRODUCT OF STEEL
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES ULTRAHOCHZUGFESTEN RECKGEFORMTEN ODER RECKGEBOGENEN BLECHPRODUKTS AUS STAHL
Title (fr)
PROCEDE DE FABRICATION D'UN PRODUIT EN TOLE D'ACIER A ULTRA HAUTE RESISTANCE FORME PAR ETIRAGE OU ALLONGEMENT
Publication
Application
Priority
- SE 0300422 W 20030313
- SE 0200764 A 20020313
Abstract (en)
[origin: WO03076100A1] A method for manufacturing an ultra-high-tensile sheet method product of steel, at which the initial work piece used is constituted of a metal work piece of iron, alloyed with chromium, nickel and carbon in predetermined proportions. The initial work piece is wholly or partially plastically cold worked by stretch forming or stretch bending at a predetermined temperature and/or deformation degree, that determines and is determining for the yield point of the final product, in providing a strong deformation hardening, that gives the final product a totally or partially many times increased strength or higher yield point, as compared to the yield point of the initial work piece.
IPC 8 full level
B21D 11/02 (2006.01); C21D 7/02 (2006.01); C21D 6/04 (2006.01)
CPC (source: 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 RO SE SI SK TR
DOCDB simple family (publication)
WO 03076100 A1 20030918; AT E493214 T1 20110115; AU 2003212760 A1 20030922; DE 60335529 D1 20110210; EP 1490187 A1 20041229; EP 1490187 B1 20101229; ES 2358982 T3 20110517; PT 1490187 E 20110314; SE 0200764 D0 20020313; SE 0200764 L 20030914; SE 526120 C2 20050705; SI 1490187 T1 20110429; US 2005211347 A1 20050929
DOCDB simple family (application)
SE 0300422 W 20030313; AT 03708789 T 20030313; AU 2003212760 A 20030313; DE 60335529 T 20030313; EP 03708789 A 20030313; ES 03708789 T 20030313; PT 03708789 T 20030313; SE 0200764 A 20020313; SI 200331949 T 20030313; US 50731005 A 20050421