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
Application
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
- DE 69933751 T2 20071004 - ARCELOR FRANCE [FR]
- DE 10208216 C1 20030327 - BENTELER AUTOMOBILTECHNIK GMBH [DE]
- WO 2005009642 A1 20050203 - DAIMLER CHRYSLER AG [DE], et al
- WO 2007028475 A2 20070315 - DAIMLER CHRYSLER AG [DE], et al
- DE 102004007071 A1 20050908 - AUDI AG [DE]
- DE 10256621 B3 20040415 - BENTELER AUTOMOBILTECHNIK GMBH [DE]
- DE 635788 C 19360924 - SIEMENS AG
- EP 0106113 A1 19840425 - MESSER GRIESHEIM GMBH [DE]
- EP 0189759 B1 19891206
- US 5972134 A 19991026 - BUSCHSIEWEKE OTTO [DE], et al
- DE 10049660 A1 20020425 - DAIMLER CHRYSLER AG [DE], et al
- DE 102005003551 A1 20060727 - VOLKSWAGEN AG [DE]
- WO 03018338 A1 20030306 - ACCRA TEKNIK AB [SE], et al
- DE 20014631 U1 20001130 - EICHHOFF GMBH [DE]
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