EP 3980260 A1 20220413 - METHOD FOR PRODUCING A STEEL COMPOSITE MATERIAL
Title (en)
METHOD FOR PRODUCING A STEEL COMPOSITE MATERIAL
Title (de)
VERFAHREN ZUM ERZEUGEN EINES STAHLVERBUNDWERKSTOFFS
Title (fr)
PROCÉDÉ DE PRODUCTION D'UN MATÉRIAU COMPOSITE EN ACIER
Publication
Application
Priority
- DE 102019115165 A 20190605
- EP 2020063835 W 20200518
Abstract (en)
[origin: WO2020244915A1] The invention relates to a method for producing a steel composite, wherein: - at least two steel sheets, which consist of at least two different steel grades, in particular a first steel grade composed of a hardenable steel containing manganese and a second steel grade composed of a microalloyed steel, are laid one on top of the other and subjected to a plating process by means of hot-rolling and the composite material thereby achieved is subsequently optionally cold-rolled; - after the rolling process, the composite material composed of at least two layers having a different steel composition is hot stamped or press hardened; - and the composite material is subjected to subsequent thermal treatment, the composite material being heat-treated between 150°C and 300°C for 15 minutes to 60 minutes in order to increase the bending angle by at least 5°.
CPC (source: EP US)
B32B 15/011 (2013.01 - EP); C21D 1/18 (2013.01 - EP); C21D 1/26 (2013.01 - EP); C21D 1/673 (2013.01 - EP); C21D 6/002 (2013.01 - EP); C21D 6/005 (2013.01 - EP); C21D 6/008 (2013.01 - EP); C21D 7/13 (2013.01 - EP); C21D 8/04 (2013.01 - EP); C21D 8/0426 (2013.01 - EP); C21D 8/0436 (2013.01 - EP); C21D 9/0062 (2013.01 - EP); C21D 9/48 (2013.01 - EP); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP); C22C 38/06 (2013.01 - EP); C22C 38/12 (2013.01 - EP); C22C 38/14 (2013.01 - EP); C22C 38/18 (2013.01 - EP); C22C 38/22 (2013.01 - EP); C22C 38/26 (2013.01 - EP); C22C 38/32 (2013.01 - EP); C22C 38/38 (2013.01 - EP); C23C 2/02 (2013.01 - EP US); C23C 2/06 (2013.01 - EP); C23C 2/12 (2013.01 - EP); C23C 2/26 (2013.01 - EP US); C23C 2/28 (2013.01 - EP US); C23C 2/29 (2022.08 - EP US); B23K 20/04 (2013.01 - EP); B23K 2103/04 (2018.07 - EP); B32B 38/0036 (2013.01 - EP); B32B 38/12 (2013.01 - EP); C21D 2211/008 (2013.01 - EP); C21D 2251/02 (2013.01 - EP)
Citation (search report)
See references of WO 2020244915A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020244915 A1 20201210; DE 102019115165 A1 20201210; EP 3980260 A1 20220413
DOCDB simple family (application)
EP 2020063835 W 20200518; DE 102019115165 A 20190605; EP 20727599 A 20200518