EP 1925381 A4 20100804 - UPSETTING METHOD AND UPSETTING DEVICE
Title (en)
UPSETTING METHOD AND UPSETTING DEVICE
Title (de)
STAUCHVERFAHREN UND STAUCHVORRICHTUNG
Title (fr)
PROCÉDÉ ET DISPOSITIF DE REFOULAGE
Publication
Application
Priority
- JP 2006317840 W 20060908
- JP 2005262192 A 20050909
- US 71652005 P 20050914
- JP 2005307849 A 20051021
- US 73036605 P 20051027
Abstract (en)
[origin: EP1925381A1] An upsetting method capable of manufacturing an upsetting manufactured product having a bent expanded portion under a lighter load is provided. A bar-shaped raw material 1 is loaded to the receiving die 11 in an axial movement prevented state, and the expansion scheduled portion 2 of the raw material 1 is arranged in the insertion hole 21 for holding the expansion scheduled portion 2 of the raw material 1 in a buckling prevented state. Subsequently, the guide 20 is moved in a direction opposite to a moving direction of the punch 30 while pressurizing the expansion scheduled portion 2 of the raw material 1 with the punch 30 in an axial direction, to thereby radially outwardly expand the expansion scheduled portion 2 of the raw material 1 exposed between a tip end portion of the guide 20 and the receiving die 11. In this upsetting method, the expansion scheduled portion 2 is bent while expanding the expansion scheduled portion 2 of the raw material 1.
IPC 8 full level
CPC (source: EP KR)
B21J 5/00 (2013.01 - EP); B21J 5/004 (2013.01 - EP); B21J 5/08 (2013.01 - EP KR); B21K 1/12 (2013.01 - KR); B21K 1/766 (2013.01 - EP)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 2007029804A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1925381 A1 20080528; EP 1925381 A4 20100804; KR 20080042118 A 20080514; WO 2007029804 A1 20070315
DOCDB simple family (application)
EP 06797694 A 20060908; JP 2006317840 W 20060908; KR 20087005600 A 20080307