EP 1568423 B1 20070425 - Method of preforming a blank by rolling
Title (en)
Method of preforming a blank by rolling
Title (de)
Verfahren zum Rollvorformen eines Rohlings
Title (fr)
Procédé de préformage d'une ébauche par des rouleaux
Publication
Application
Priority
DE 102004008800 A 20040220
Abstract (en)
[origin: EP1568423A1] A stationary blank is plastically deformed continuously and progressively. After rotating the longitudinal axis of the blank, the deformation process can be repeated as required to increase the degree of deformation. The blank may be heated prior to deformation. An independent claim is included for an apparatus for carrying out the method.
IPC 8 full level
B21J 1/04 (2006.01); B21H 1/20 (2006.01); B21H 1/22 (2006.01); B21H 8/00 (2006.01); B21J 5/00 (2006.01); B21J 5/12 (2006.01); B21J 13/02 (2006.01)
CPC (source: EP US)
B21H 8/00 (2013.01 - EP US); B21J 5/00 (2013.01 - EP US); B21J 5/12 (2013.01 - EP US); B21J 13/02 (2013.01 - EP US); B21J 13/025 (2013.01 - EP US); B21H 1/20 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE ES IT LI
DOCDB simple family (publication)
EP 1568423 A1 20050831; EP 1568423 B1 20070425; DE 102004008800 A1 20050929; DE 102005007712 A1 20050908; DE 502005000611 D1 20070606; ES 2285585 T3 20071116; US 2005183485 A1 20050825; US 7237417 B2 20070703
DOCDB simple family (application)
EP 05003264 A 20050216; DE 102004008800 A 20040220; DE 102005007712 A 20050218; DE 502005000611 T 20050216; ES 05003264 T 20050216; US 6063005 A 20050217