EP 0764481 B1 19980729 - Device for forming a collared calibrated hole in plastically deformable walls
Title (en)
Device for forming a collared calibrated hole in plastically deformable walls
Title (de)
Vorrichtung zum Bilden eines von einem Kragen umgebenen, kalibrierten Loches in plastisch verformbaren Wandungen
Title (fr)
Dispositif pour former un trou calibré avec une collerette dans des parois plastiquement déformables
Publication
Application
Priority
DE 19534790 A 19950920
Abstract (en)
[origin: EP0764481A1] The punch has a mandrel, which is driven into the wall by pressure. A preformed bore (16) of average diameter is placed in the wall (2). The mandrel is formed as a calibrating mandrel (25) with conically undercut displacement collar (26), with a larger diameter than the bore. The mandrel also has a cylindrical calibrating shaft (27), also with a smaller diameter than the bore.
IPC 1-7
IPC 8 full level
B21C 37/28 (2006.01); B21C 37/29 (2006.01); B21D 19/10 (2006.01); B21K 21/12 (2006.01)
CPC (source: EP)
B21C 37/28 (2013.01); B21K 21/12 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0764481 A1 19970326; EP 0764481 B1 19980729; DE 19534790 A1 19970327; DE 59600377 D1 19980903
DOCDB simple family (application)
EP 96114587 A 19960912; DE 19534790 A 19950920; DE 59600377 T 19960912