EP 2943297 B1 20161221 - METHOD, TOOL AND PRESS FOR THE ELECTROHYDRAULIC FORMING OF A WORKPIECE
Title (en)
METHOD, TOOL AND PRESS FOR THE ELECTROHYDRAULIC FORMING OF A WORKPIECE
Title (de)
VERFAHREN, WERKZEUG UND PRESSE ZUR ELEKTROHYDRAULISCHEN FORMUNG EINES WERKSTÜCKES
Title (fr)
PROCEDE, OUTILLAGE ET PRESSE DE FORMAGE ÉLECTROHYDRAULIQUE D'UNE PIECE
Publication
Application
Priority
- FR 1350270 A 20130111
- EP 2014050318 W 20140109
Abstract (en)
[origin: WO2014108468A1] The invention concerns a method for forming a workpiece by pressing that eliminates elastic return, which involves using a tool (20) of which at least one of the forming portions (21; 23) comprises a cavity (26) filled with a liquid (27) and provided with electrodes (28) capable of generating at least one shock wave in the cavity and through the wall (25) of said forming portion, deforming a material blank (18) between the two forming portions under the effect of a deformation pressure, and generating, without releasing the deformation pressure, at least one shock wave in the cavity such that the shock wave passes through the material blank orthogonally to the surface of same. The invention also concerns a tool (20) and a press (10) suitable for implementing the method.
IPC 8 full level
B21D 26/06 (2006.01); B21D 26/12 (2006.01)
CPC (source: EP US)
B21D 22/02 (2013.01 - US); B21D 22/10 (2013.01 - US); B21D 22/22 (2013.01 - EP US); B21D 22/30 (2013.01 - EP US); B21D 26/06 (2013.01 - EP US); B21D 26/12 (2013.01 - 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)
WO 2014108468 A1 20140717; CN 105026066 A 20151104; CN 105026066 B 20170322; EP 2943297 A1 20151118; EP 2943297 B1 20161221; FR 3000909 A1 20140718; FR 3000909 B1 20150515; JP 2016502934 A 20160201; JP 6258351 B2 20180110; US 10201843 B2 20190212; US 2015360275 A1 20151217
DOCDB simple family (application)
EP 2014050318 W 20140109; CN 201480004618 A 20140109; EP 14700188 A 20140109; FR 1350270 A 20130111; JP 2015552045 A 20140109; US 201414760346 A 20140109