Global Patent Index - EP 0631829 B1

EP 0631829 B1 19970806 - Separating agent for the hot forming of incased metal parts and method of producing the separating agent

Title (en)

Separating agent for the hot forming of incased metal parts and method of producing the separating agent

Title (de)

Trennmittel für die Warmumformung von gekapselten Metallteilen und Verfahren zum Herstellen des Trennmittels

Title (fr)

Agent de séparation pour le forgeage à chaud de pièces étanches en métal et procédé de fabrication d'agent de séparation

Publication

EP 0631829 B1 19970806 (DE)

Application

EP 93810378 A 19930525

Priority

EP 93810378 A 19930525

Abstract (en)

[origin: EP0631829A1] Hot forming of encapsulated metal parts (2) employs, according to the invention, a parting agent (release agent) in the form of a monolithic component (3a, 3b). This component consists of powder particles consolidated by sintering. The parting agent material is brittle at ambient temperature and is plastically deformable or able to flow with high viscosity at the forming temperature of the metal parts. <IMAGE>

IPC 1-7

B21B 1/38; B21C 23/32

IPC 8 full level

B28B 1/26 (2006.01); B21B 1/38 (2006.01); B21C 23/00 (2006.01)

CPC (source: EP US)

B21B 1/38 (2013.01 - EP US); B21C 23/002 (2013.01 - EP US); Y10T 29/304 (2015.01 - EP US); Y10T 29/305 (2015.01 - EP US); Y10T 29/306 (2015.01 - EP US); Y10T 29/4981 (2015.01 - EP US); Y10T 29/49998 (2015.01 - EP US); Y10T 428/12028 (2015.01 - EP US); Y10T 428/131 (2015.01 - EP US)

Designated contracting state (EPC)

AT CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0631829 A1 19950104; EP 0631829 B1 19970806; AT E156394 T1 19970815; DE 59307079 D1 19970911; JP H07132510 A 19950523; US 5658623 A 19970819

DOCDB simple family (application)

EP 93810378 A 19930525; AT 93810378 T 19930525; DE 59307079 T 19930525; JP 11139294 A 19940525; US 24780894 A 19940523