EP 0924004 A3 20000315 - Method and machine for shaping the edges of bent pieces
Title (en)
Method and machine for shaping the edges of bent pieces
Title (de)
Verfahren und Maschine zum Formen der Kanten von gebogenen Werkstücken
Title (fr)
Procédé et machine de formage de bords de pièces cintrées
Publication
Application
Priority
IT MI972777 A 19971216
Abstract (en)
[origin: EP0924004A2] A method and a machine for shaping the edges (12, 13) of a roll bent metal piece (10), more particularly tubular or annular members (10) from a metal sheet or a sectional bar; the flat or non-curved longitudinal edges (12, 13) of the roll bent metal piece (10) are subjected to a roll shaping step of making it move forwards with one or both edges (12, 13) clamped between opposing shaping elements (25, 26); the shaping elements are rotatably supported to act on the internal and on the external surfaces respectively of the bent piece (10) in order to provide the flat edges (12,13) of the same bent piece (10) with the required circular shape. <IMAGE>
IPC 1-7
IPC 8 full level
B21C 37/06 (2006.01); B21C 37/08 (2006.01)
CPC (source: EP)
B21C 37/06 (2013.01); B21C 37/0822 (2013.01)
Citation (search report)
- [XY] DE 588960 C 19331201 - MANNESMANN AG
- [Y] DE 915932 C 19540802 - LINDE EISMASCH AG
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0924004 A2 19990623; EP 0924004 A3 20000315; IT 1296977 B1 19990803; IT MI972777 A1 19990616
DOCDB simple family (application)
EP 98123722 A 19981214; IT MI972777 A 19971216