Global Patent Index - EP 2227570 B1

EP 2227570 B1 20170125 - METHOD FOR PRODUCING A SHAPED COMPONENT COMPRISING AT LEAST TWO JOINING AREAS HAVING DIFFERENT DUCTILITY

Title (en)

METHOD FOR PRODUCING A SHAPED COMPONENT COMPRISING AT LEAST TWO JOINING AREAS HAVING DIFFERENT DUCTILITY

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES FORMBAUTEILS MIT MINDESTENS ZWEI GEFÜGEBEREICHEN UNTERSCHIEDLICHER DUKTILITÄT

Title (fr)

PROCÉDÉ DE FABRICATION D'UNE PIÈCE FAÇONNÉE COMPRENANT AU MOINS DEUX ZONES STRUCTURELLES À DUCTILITÉ DIFFÉRENTE

Publication

EP 2227570 B1 20170125 (DE)

Application

EP 08854114 A 20081103

Priority

  • DE 2008001799 W 20081103
  • DE 102007057855 A 20071129

Abstract (en)

[origin: DE102007057855B3] Production of moldings with structure zones (2, 3) of different ductility comprises: (A) cutting a blank (7) from strip (4) of aluminum/silicon coated high-tensile steel;heating it to 830 - 850[deg] C in the first zone (8) of a multizone furnace (11); moving it after the desired dwell time to a second section of the furnace where one zone (12) of the blank is held at 550 - 650[deg] c in one zone (9), while the other (13) is held at 830 - 950[deg] c in a second zone (10); and heat-forming the blank. Independent claims are included for: (A) a similar process, but in which the strip itself is preheated before the blank is cut and this is then heated to different temperatures in two zones; and a similar process, but in which the blank is cooled after the preheating stage before it is heated in the two zones.

IPC 8 full level

C21D 1/673 (2006.01); C21D 9/46 (2006.01)

CPC (source: EP US)

C21D 1/673 (2013.01 - EP US); C21D 9/0068 (2013.01 - EP US); F27B 9/028 (2013.01 - EP US); C21D 9/46 (2013.01 - EP US); C21D 2221/00 (2013.01 - EP US)

Citation (examination)

DE 102004049413 A1 20060413 - VOLKSWAGEN AG [DE], et al

Citation (opposition)

Opponent : Puchberger & Partner Patentanwälte

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

DE 102007057855 B3 20081030; CN 101796202 A 20100804; EP 2227570 A1 20100915; EP 2227570 B1 20170125; ES 2620804 T3 20170629; RU 2010126492 A 20120110; RU 2445381 C1 20120320; US 2010300584 A1 20101202; WO 2009067976 A1 20090604

DOCDB simple family (application)

DE 102007057855 A 20071129; CN 200880105421 A 20081103; DE 2008001799 W 20081103; EP 08854114 A 20081103; ES 08854114 T 20081103; RU 2010126492 A 20081103; US 74536008 A 20081103