EP 1363752 B1 20060913 - FORMING TOOL FOR HYDROMECHANICALLY DEEP-DRAWING WORKPIECES FROM SHEET METAL BLANKS
Title (en)
FORMING TOOL FOR HYDROMECHANICALLY DEEP-DRAWING WORKPIECES FROM SHEET METAL BLANKS
Title (de)
UMFORMWERKZEUG ZUM HYDROMECHANISCHEN TIEFZIEHEN VON WERKSTÜCKEN AUS BLECHZUSCHNITTEN
Title (fr)
OUTIL DE FORMAGE DESTINE A L'EMBOUTISSAGE HYDROMECANIQUE PROFOND DE PIECES EN TANT QUE COUPES DE TOLES
Publication
Application
Priority
- DE 10110161 A 20010302
- EP 0201894 W 20020222
Abstract (en)
[origin: WO02070163A1] The invention relates to a forming tool (1) for hydromechanically deep-drawing workpieces from sheet metal blanks (2), said tool comprising a water tank (3), which acts as a lower tool and can be filled with a liquid active medium (8), thus forming the drawing die. The tool is also provided with a drawing ring (10), which is located in the upper section of the water tank (3) and is sealed against a volume of the active medium lying below. The boundary of the ring aperture (11) of the drawing ring (10) forms a drawing edge for the workpiece (2). The forming tool also comprises a drawing punch (9), which can be displaced with the sheet metal blank (2) interposed, through the ring aperture (11) of the drawing ring (10) into the section containing the active medium (8), whereby the sheet metal blank is pressed onto the drawing punch (9) using a reaction pressure as the application pressure, by means of a targeted displacement of the active medium (8). According to the invention, a water tank insert (14), which can be filled with active medium (8) to leave free the remaining water tank volume, can be positioned in the water tank (3), whereby the ring section of the drawing ring (10) lies tightly on the upper edge of the lateral walls (15, 16, 19, 20) of the insert.
IPC 8 full level
B21D 22/20 (2006.01)
CPC (source: EP US)
B21D 22/205 (2013.01 - EP US); Y10T 29/49805 (2015.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 02070163 A1 20020912; DE 10110161 A1 20030102; DE 50208136 D1 20061026; EP 1363752 A1 20031126; EP 1363752 B1 20060913; ES 2268008 T3 20070316; JP 2004520938 A 20040715; US 2004074274 A1 20040422; US 7007531 B2 20060307
DOCDB simple family (application)
EP 0201894 W 20020222; DE 10110161 A 20010302; DE 50208136 T 20020222; EP 02719899 A 20020222; ES 02719899 T 20020222; JP 2002569322 A 20020222; US 46958203 A 20030902