EP 2221127 B1 20120201 - Method for manufacturing ring-like components
Title (en)
Method for manufacturing ring-like components
Title (de)
Verfahren zur Herstellung von ringförmigen Bauteilen
Title (fr)
Procédé de fabrication de composants annulaires
Publication
Application
Priority
EP 09153340 A 20090220
Abstract (en)
[origin: EP2221127A1] The method involves guiding a raw material strand (8) by an axially movable guiding and shearing tool (10). A machine ram i.e. plunger (11), is introduced into the strand by a movement in a front dead center, where a front end of the strand is transformed into a cup-shape by backward extrusion. The ram is withdrawn behind the dead center under simultaneous withdrawal of the tool, where shearing of a ring-like material portion from the strand takes place. The ring-like material that remains in an annular space due to friction after shearing, is removed. The space is formed from a ram side. An independent claim is also included for a tool system for producing a ring-like workpiece, comprising a fixed pressing part.
IPC 8 full level
B21J 9/02 (2006.01); B21J 13/03 (2006.01); B21K 1/76 (2006.01)
CPC (source: EP)
B21J 9/02 (2013.01); B21J 13/03 (2013.01); B21K 1/761 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2221127 A1 20100825; EP 2221127 B1 20120201; AT E543585 T1 20120215
DOCDB simple family (application)
EP 09153340 A 20090220; AT 09153340 T 20090220