EP 3541545 A1 20190925 - METHOD FOR ELECTROHYDRAULIC FORMING AND ASSOCIATED DEVICE
Title (en)
METHOD FOR ELECTROHYDRAULIC FORMING AND ASSOCIATED DEVICE
Title (de)
VERFAHREN ZUR ELEKTROHYDRAULISCHEN FORMUNG UND ZUGEHÖRIGE VORRICHTUNG
Title (fr)
PROCÉDÉ DE FORMAGE ÉLECTROHYDRAULIQUE ET DISPOSITIF ASSOCIÉ
Publication
Application
Priority
- FR 1661068 A 20161115
- EP 2017079236 W 20171114
Abstract (en)
[origin: WO2018091481A1] The invention relates to a method for electrohydraulic forming a material blank (150), in which: a material blank (150) to be shaped is placed between a mould (130) and a blank holder (140); a tight cavity containing electrodes (160) is filled with liquid up to a predetermined liquid level; the material blank (150) is brought into contact with the liquid of the cavity; the material blank is hydraulically preformed; and the material blank is electrohydraulically formed. The liquid of the cavity is pressurised for the hydraulic preforming by moving all or part of one of the walls of the cavity.
IPC 8 full level
B21D 26/021 (2011.01); B21D 26/023 (2011.01); B21D 26/12 (2006.01)
CPC (source: EP US)
B21D 26/021 (2013.01 - EP US); B21D 26/023 (2013.01 - EP US); B21D 26/12 (2013.01 - EP US)
Citation (search report)
See references of WO 2018091481A1
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)
FR 3058654 A1 20180518; FR 3058654 B1 20190607; CN 110087793 A 20190802; EP 3541545 A1 20190925; JP 2019537514 A 20191226; JP 6924509 B2 20210825; US 10994321 B2 20210504; US 2019283102 A1 20190919; WO 2018091481 A1 20180524
DOCDB simple family (application)
FR 1661068 A 20161115; CN 201780070303 A 20171114; EP 17798192 A 20171114; EP 2017079236 W 20171114; JP 2019525771 A 20171114; US 201716349962 A 20171114