Global Patent Index - EP 1483417 A1

EP 1483417 A1 2004-12-08 - A METHOD FOR MANUFACTURING AN ULTRA-HIGH-TENSILE PRESSURE TURNED SHEET METAL PRODUCT OF STEEL

Title (en)

A METHOD FOR MANUFACTURING AN ULTRA-HIGH-TENSILE PRESSURE TURNED SHEET METAL PRODUCT OF STEEL

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES STAHLBLECHES DURCH FLIESSDRÜCKEN

Title (fr)

MÉTHODE DE PRODUCTION D'UNE TÔLE EN ACIER À HAUTE RÉSISTANCE MÉCANIQUE PAR FLUOTOURNAGE

Publication

EP 1483417 A1 (EN)

Application

EP 03708779 A

Priority

  • SE 0300377 W
  • SE 0200662 A

Abstract (en)

[origin: WO03074742A1] The invention relates a method for manufacturing an ultra-high-tensile sheet metal 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 plastically cold worked by pressure turning 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 completely or partially many times increased strength, or higher yield point, as compared to the yield point of the initial work piece.

IPC 1-7 (main, further and additional classification)

C21D 7/02; B21D 22/14

IPC 8 full level (invention and additional information)

C21D 7/02 (2006.01); C21D 8/02 (2006.01); C21D 6/04 (2006.01)

CPC (invention and additional information)

C21D 8/0205 (2013.01); C21D 7/02 (2013.01); C21D 6/04 (2013.01)

Citation (search report)

See references of WO 03074742A1

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

EPO simple patent family

WO 03074742 A1 20030912; AU 2003212750 A1 20030916; EP 1483417 A1 20041208; EP 1483417 B1 20130116; SE 0200662 D0 20020305; SE 0200662 L 20030906; SE 526117 C2 20050705

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