Global Patent Index - EP 3240648 B1

EP 3240648 B1 20190206 - ELECTROHYDRAULIC FORMING DEVICE COMPRISING AN OPTIMISED CHAMBER

Title (en)

ELECTROHYDRAULIC FORMING DEVICE COMPRISING AN OPTIMISED CHAMBER

Title (de)

ELEKTROHYDRAULISCHE FORMVORRICHTUNG MIT OPTIMIERTER KAMMER

Title (fr)

DISPOSITIF D'ÉLECTRO-HYDROFORMAGE AVEC CHAMBRE OPTIMISÉE

Publication

EP 3240648 B1 20190206 (FR)

Application

EP 15820178 A 20151229

Priority

  • FR 1463411 A 20141229
  • EP 2015081377 W 20151229

Abstract (en)

[origin: WO2016107884A1] The invention relates to an electrohydraulic forming device (2) comprising a mould (4), a tank (6) having a first wall (8), and a first electrode (10) and a second electrode (12), both placed in the tank (6) and adapted to generate an electric discharge in order to create at least one pressure wave. According to the invention, the first wall (8) has a surface of revolution about a rotation axis, the rotation axes of the electrodes (10, 12) merging with the rotation axis of the first wall, and the first wall (8) includes a concavity oriented towards the mould (4).

IPC 8 full level

B21D 26/12 (2006.01)

CPC (source: CN EP US)

B21D 26/12 (2013.01 - CN EP US)

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

DOCDB simple family (publication)

FR 3031054 A1 20160701; FR 3031054 B1 20170127; CN 107206455 A 20170926; CN 107206455 B 20181214; EP 3240648 A1 20171108; EP 3240648 B1 20190206; JP 2018501116 A 20180118; JP 6677744 B2 20200408; US 10953450 B2 20210323; US 2018021837 A1 20180125; WO 2016107884 A1 20160707

DOCDB simple family (application)

FR 1463411 A 20141229; CN 201580074187 A 20151229; EP 15820178 A 20151229; EP 2015081377 W 20151229; JP 2017552237 A 20151229; US 201515540940 A 20151229