EP 2227570 A1 20100915 - 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 (search report)
See references of WO 2009067976A1
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
Designated extension state (EPC)
AL BA MK RS
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