EP 2488315 A1 20120822 - METHOD AND DEVICE FOR THE COMPLEX FORMING OF A METAL SHEET WITH THE AID OF BODIES OF REVOLUTION
Title (en)
METHOD AND DEVICE FOR THE COMPLEX FORMING OF A METAL SHEET WITH THE AID OF BODIES OF REVOLUTION
Title (de)
VERFAHREN UND VORRICHTUNG ZUR KOMPLEXEN UMFORMUNG EINES BLECHES MIT HILFE VON ROTATIONSKÖRPERN
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR LA DÉFORMATION COMPLEXE D'UNE TÔLE À L'AIDE DE CORPS DE ROTATION
Publication
Application
Priority
- DE 102009049297 A 20091013
- EP 2010065170 W 20101011
Abstract (en)
[origin: WO2011045261A1] The invention relates to a method for the forming of a metal sheet with the aid of bodies of revolution. For this purpose, two receiving shafts (3, 4) that are spaced apart from each other are provided with shaped bodies (1, 2), wherein the shaped bodies are configured in their surface in such a way that they replicate the end product. Then, the shaped bodies are aligned in such a way that they are opposite each other in neutral positions, the inserted workpiece (5) defining this neutral position by an outer edge. Finally, in a first forming phase, as it is being advanced, the workpiece is subjected to deformation while pressure is applied, to the extent that the workpiece is changed in its thickness and/or curved. If the workpiece is advanced counter to the working direction (16), no pressure is applied. This operation is repeated until the workpiece has achieved the desired thickness. For further forming phases, the forming process is repeated, the number of forming phases being dependent on the number and type of changes in thickness and curvature that are desired. The invention also relates to a device for carrying out said method.
IPC 8 full level
CPC (source: EP US)
B21H 7/007 (2013.01 - EP US); B21H 7/16 (2013.01 - EP US)
Citation (search report)
See references of WO 2011045261A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102009049297 B3 20110414; EP 2488315 A1 20120822; US 2012198902 A1 20120809; WO 2011045261 A1 20110421
DOCDB simple family (application)
DE 102009049297 A 20091013; EP 10771063 A 20101011; EP 2010065170 W 20101011; US 201013501391 A 20101011