EP 1062089 A1 20001227 - PROCESS FOR PRODUCING A DOME-SHAPED EXTRUSION DIE
Title (en)
PROCESS FOR PRODUCING A DOME-SHAPED EXTRUSION DIE
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER KUPPELFÖRMIGEN EXTRUDERMATRIZE
Title (fr)
PROCEDE DE FABRICATION D'UNE FILIERE D'EXTRUSION EN FORME DE DOME
Publication
Application
Priority
- US 9904478 W 19990302
- US 7738098 P 19980310
Abstract (en)
[origin: WO9946112A1] This application pertains to a process for making a seamless, dome-shaped extrusion die (30), comprising the steps of: hydroforming a metal sheet into the shape of a dome, said being seamless; annealing the hydroformed metal sheet; and forming a plurality of extrusion openings (38), in the dome.
IPC 1-7
IPC 8 full level
B21D 26/02 (2006.01); B21D 26/021 (2011.01); B21D 26/031 (2011.01); B23P 15/00 (2006.01); B30B 11/22 (2006.01)
CPC (source: EP)
B30B 11/221 (2013.01)
Citation (search report)
See references of WO 9946112A1
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
WO 9946112 A1 19990916; AU 2799399 A 19990927; EP 1062089 A1 20001227; JP 2002505961 A 20020226
DOCDB simple family (application)
US 9904478 W 19990302; AU 2799399 A 19990302; EP 99908600 A 19990302; JP 2000535507 A 19990302