EP 1329269 B1 20050209 - Apparatus for hydro-forming and its use
Title (en)
Apparatus for hydro-forming and its use
Title (de)
Innenhochdruck-Umformvorrichtung und Verwendung derselben
Title (fr)
Appareil d'hydroformage et son utilisation
Publication
Application
Priority
EP 02405027 A 20020117
Abstract (en)
[origin: EP1329269A1] A pressure converter includes a longitudinally coupled displacement body with different working surface areas. The displacement body operates with a stroke frequency and a pressure created on a primary side. The pressure can be converted into a higher pressure by the strokes of the pressure converter until an end pressure is reached on a secondary side. An Independent claim is also included for a workpiece forming process.
IPC 1-7
IPC 8 full level
B21C 37/29 (2006.01); B21D 26/041 (2011.01)
CPC (source: EP US)
B21C 37/294 (2013.01 - EP US); B21D 26/041 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE
DOCDB simple family (publication)
EP 1329269 A1 20030723; EP 1329269 B1 20050209; AT E288801 T1 20050215; CA 2416088 A1 20030717; DE 50202209 D1 20050317; JP 2003236630 A 20030826; US 2003133810 A1 20030717; US 6834522 B2 20041228
DOCDB simple family (application)
EP 02405027 A 20020117; AT 02405027 T 20020117; CA 2416088 A 20030113; DE 50202209 T 20020117; JP 2003001906 A 20030108; US 34701603 A 20030117