EP 1029611 B1 20030514 - Device for hydroforming hollow bend undercut products
Title (en)
Device for hydroforming hollow bend undercut products
Title (de)
Vorrichtung zur Herstellung bauchiger hinterschnittener Hohlkörper mittels Innenhochdruckumformverfahren
Title (fr)
Dispositif pour la fabrication de produits creux courbes contre-dépouillés par hydroformage
Publication
Application
Priority
DE 19907247 A 19990219
Abstract (en)
[origin: EP1029611A2] The process uses two work piece parts (1,2), one of which is cup-shaped and has a flange. The parts are pressed together in the area of the flange, in a forming tool, are together subjected to an internal high pressure forming process, and machined further separately or together. During the pressure medium-tight pressing, the parts execute a movement relative to each other, and stamping takes place in the flange area (1.1,1.2), to influence material flow and/or aid sealing and/or achieve position fixing of the parts.
IPC 1-7
IPC 8 full level
B21D 26/02 (2011.01); B21D 26/029 (2011.01); B21D 26/031 (2011.01); B21D 26/059 (2011.01)
CPC (source: EP US)
B21D 26/029 (2013.01 - EP US); B21D 26/031 (2013.01 - EP US); B21D 26/059 (2013.01 - EP US); Y10T 29/49805 (2015.01 - EP US)
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)
EP 1029611 A2 20000823; EP 1029611 A3 20010523; EP 1029611 B1 20030514; AT E240170 T1 20030515; DE 19907247 A1 20000831; DE 19907247 C2 20010823; DE 50002132 D1 20030618; US 6966209 B1 20051122
DOCDB simple family (application)
EP 00103174 A 20000216; AT 00103174 T 20000216; DE 19907247 A 19990219; DE 50002132 T 20000216; US 50745300 A 20000222