EP 0000438 B1 19821020 - PROCESS FOR PRODUCING TUBULAR ARTICLES
Title (en)
PROCESS FOR PRODUCING TUBULAR ARTICLES
Publication
Application
Priority
GB 2849577 A 19770707
Abstract (en)
[origin: EP0000438A1] A process for the manufacture of a tubular metal container or vessel, such as a shell or cartridge case, in which an open-ended hollow metal tube (10) is mounted on a mandrel (12), and in which the mandrel (12) and a forming punch (17) are moved relative to one another in a die (21) such that the metal at one end of the tube (10) is displaced inwardly from around the circumference of the tube to form a central hole at the said end of the tube, the displaced metal being formed with an external recess or pocket communicating with the said hole.
IPC 1-7
IPC 8 full level
B21D 51/54 (2006.01); B21K 21/04 (2006.01); B21K 21/14 (2006.01)
CPC (source: EP US)
B21D 51/54 (2013.01 - EP US); B21K 21/04 (2013.01 - EP US); B21K 21/14 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR SE
DOCDB simple family (publication)
EP 0000438 A1 19790124; EP 0000438 B1 19821020; CA 1086112 A 19800923; DE 2862061 D1 19821125; GB 1602973 A 19811118; JP S5440276 A 19790329; US 4198843 A 19800422
DOCDB simple family (application)
EP 78300126 A 19780706; CA 306834 A 19780705; DE 2862061 T 19780706; GB 2849577 A 19770707; JP 8282278 A 19780707; US 92232878 A 19780706