EP 3728656 A1 20201028 - METHOD FOR PRODUCING METALLIC COMPONENTS HAVING ADAPTED COMPONENT PROPERTIES
Title (en)
METHOD FOR PRODUCING METALLIC COMPONENTS HAVING ADAPTED COMPONENT PROPERTIES
Title (de)
VERFAHREN ZUM ERZEUGEN METALLISCHER BAUTEILE MIT ANGEPASSTEN BAUTEILEIGENSCHAFTEN
Title (fr)
PROCÉDÉ DESTINÉ À PRODUIRE DES COMPOSANTS MÉTALLIQUES À PROPRIÉTÉS DE COMPOSANTS ADAPTÉES
Publication
Application
Priority
- DE 102017131253 A 20171222
- EP 2018086685 W 20181221
Abstract (en)
[origin: WO2019122372A1] The invention relates to a method for producing a steel sheet component according to a press hardening or shape hardening method, wherein the steel sheet component is produced such that a blank having at least one region made of a highly hardenable carbon-manganese-boron steel and at least one dual-phase steel is cold-formed, subsequently heated and quenched in a cooling press, or a blank having at least one region made of a highly hardenable carbon-manganese-boron steel and at least one region made of a dual-phase steel is heated to a temperature above the austenitization temperature of the highly hardenable steel material and is subsequently converted into the steel sheet component in a shaping and cooling press with one stroke or several strokes, wherein a dual-phase steel is used as the softer material and as a partner for the highly hardenable carbon-manganese-boron steel, the Ac3 value of said dual-phase steel being increased to such an extent that, at the required annealing temperatures for the austenitization of the carbon-manganese-boron steel, only a partial austenitization of the dual-phase steel takes place so that upon insertion into the cooling press, the dual-phase steel has a ferritic matrix and also comprises austenite.
IPC 8 full level
C21D 8/02 (2006.01); C22C 38/04 (2006.01)
CPC (source: EP US)
C21D 1/185 (2013.01 - EP US); C21D 1/26 (2013.01 - US); C21D 1/673 (2013.01 - US); C21D 8/0205 (2013.01 - EP US); C21D 9/0068 (2013.01 - EP US); C21D 9/50 (2013.01 - EP US); C22C 38/00 (2013.01 - EP); C22C 38/002 (2013.01 - US); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/26 (2013.01 - EP US); C22C 38/28 (2013.01 - EP US); C22C 38/34 (2013.01 - US); C22C 38/38 (2013.01 - US); C21D 1/673 (2013.01 - EP); C21D 2201/00 (2013.01 - US); C21D 2211/001 (2013.01 - US); C21D 2211/005 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US)
Citation (search report)
See references of WO 2019122372A1
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)
DE 102017131253 A1 20190627; EP 3728656 A1 20201028; EP 3728656 B1 20220202; ES 2907011 T3 20220421; US 11459628 B2 20221004; US 2021164066 A1 20210603; WO 2019122372 A1 20190627
DOCDB simple family (application)
DE 102017131253 A 20171222; EP 18836369 A 20181221; EP 2018086685 W 20181221; ES 18836369 T 20181221; US 201816956642 A 20181221