EP 0673694 B1 19991006 - Method of forming metallic bodies with high pressures applied by a pressure transmitting medium, application of the method and device therefor
Title (en)
Method of forming metallic bodies with high pressures applied by a pressure transmitting medium, application of the method and device therefor
Title (de)
Verfahren zum Umformen metallischer Körper mittels über ein druckübertragendes Medium aufgebrachter hoher Drücke, Anwendung des Verfahrens und Vorrichtung dazu
Title (fr)
Procédé pour former des corps métalliques à l'aide de hautes pressions développées par un milieu transmettant la pression, utilisation du procédé et dispositif à cet usage
Publication
Application
Priority
DE 4407908 A 19940309
Abstract (en)
[origin: EP0673694A1] Modifying metal bodies by applying high pressures via a pressure transmitting medium,which is a metal (alloy) with a low m.pt. and high plasticity. The method is used to expand a cylindrical hollow body (1) with open ends. The interior of the body is filled with a pressure transmitting medium (2), the ends of the body are closed by stiff walls (31,32) subjected to forces (51,52), and the pressure is introduced by means of a displacement element (4) subjected to a force (53).
IPC 1-7
IPC 8 full level
B21C 23/21 (2006.01); B21C 23/00 (2006.01); B21C 37/29 (2006.01); B21D 22/12 (2006.01); B21D 26/02 (2011.01); B21D 26/041 (2011.01); B21D 39/08 (2006.01); B21D 41/02 (2006.01); B21J 9/12 (2006.01); B21K 1/76 (2006.01); B30B 5/02 (2006.01)
CPC (source: EP)
B21C 23/001 (2013.01); B21C 23/007 (2013.01); B21C 37/294 (2013.01); B21K 1/761 (2013.01)
Designated contracting state (EPC)
AT BE DE FR GB IT LU SE
DOCDB simple family (publication)
EP 0673694 A1 19950927; EP 0673694 B1 19991006; AT E185294 T1 19991015; DE 4407908 A1 19950914; DE 4407908 C2 19980423; DE 59506966 D1 19991111; JP 2675765 B2 19971112; JP H08141685 A 19960604; ZA 951925 B 19951211
DOCDB simple family (application)
EP 95102201 A 19950217; AT 95102201 T 19950217; DE 4407908 A 19940309; DE 59506966 T 19950217; JP 4978895 A 19950309; ZA 951925 A 19950308