EP 1197273 A1 20020417 - An apparatus and method to perform hydroforming, hydromechanical forming or mechanical forming
Title (en)
An apparatus and method to perform hydroforming, hydromechanical forming or mechanical forming
Title (de)
Vorrichtung und Verfahren zur mechanischen, hydromechanischen oder hydraulischen Umformung
Title (fr)
Dispositif et méthode pour la déformation mécanique, hydromécanique ou hydraulique
Publication
Application
Priority
EP 00870228 A 20001010
Abstract (en)
The present invention is related to a device used for forming an object, in particular from a sheet or tube, said device comprising at least one die (1), said die having at least one alcove (11) in the inner wall (13) of said die, said alcove (11) being connected to a hydraulic supply system (16), said system supplying a fluid flow between said material (3) and said die (1), characterised in that said alcove (11) is partially filled by a porous zone (12), said porous zone representing a restrictor in said fluid flow, said porous zone being placed flush with said die wall (13), so that no interruption of said die wall occurs. <IMAGE>
IPC 1-7
IPC 8 full level
B21D 22/20 (2006.01); B21D 26/02 (2011.01); B21D 26/027 (2011.01); B21D 26/031 (2011.01); B21D 26/041 (2011.01); B21D 26/047 (2011.01)
CPC (source: EP)
B21D 22/205 (2013.01); B21D 26/027 (2013.01); B21D 26/031 (2013.01); B21D 26/041 (2013.01); B21D 26/047 (2013.01)
Citation (search report)
- [Y] DE 19751413 A1 19990602 - MANNESMANN AG [DE]
- [Y] JP H04371323 A 19921224 - HONDA MOTOR CO LTD
- [AD] EP 0771598 A1 19970507 - BENTELER WERKE AG [DE]
- [A] US 2821156 A 19580128 - ALBERT LYON GEORGE
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 00870228 A 20001010