EP 2125264 B1 20100721 - METHOD AND DEVICE FOR DEEP DRAWING BLANKS MADE OF SHEET METAL INTO FLANGELESS MOLDED BLANKS
Title (en)
METHOD AND DEVICE FOR DEEP DRAWING BLANKS MADE OF SHEET METAL INTO FLANGELESS MOLDED BLANKS
Title (de)
VERFAHREN UND VORRICHTUNG ZUM TIEFZIEHEN VON ROHLINGEN AUS BLECHMATERIAL ZU FLANSCHLOSEN FORMLINGEN
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR L'EMBOUTISSAGE DE PIÈCES BRUTES DE COULÉE EN TÔLE POUR DONNER DES ÉBAUCHES SANS COLLERETTE
Publication
Application
Priority
- EP 2007010053 W 20071121
- DE 102007005011 A 20070201
Abstract (en)
[origin: WO2008092486A1] The invention relates to method for deep drawing blanks (10) punched out of sheet metal that is painted or coated with film material, for example made of steel or aluminum, into flangeless molded blanks, wherein the blanks are formed to a crucible-shaped part, which has a flangeless cylindrical edge, around a drawing core (18) by means of a drawing bell (20) of a drawing die, and a predetermined spring force is applied to the side of the edge opposite of the drawing bell (20) during the forming of the edge of the blanks (10) by means of a blank holder (22), wherein the spring force applied to the blank holder (22) is spontaneously reduced substantially to zero shortly before the end of the drawing process.
IPC 8 full level
B21D 24/14 (2006.01)
CPC (source: EP US)
B21D 22/22 (2013.01 - EP US); B21D 24/14 (2013.01 - EP US)
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 MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008092486 A1 20080807; AT E474677 T1 20100815; AU 2007345439 A1 20080807; AU 2007345439 B2 20140904; BR PI0721214 A2 20140318; BR PI0721214 B1 20190430; CA 2676966 A1 20080807; CA 2676966 C 20120522; CN 101678428 A 20100324; CN 101678428 B 20120530; DE 102007005011 A1 20080814; DE 102007005011 B4 20120906; DE 502007004524 D1 20100902; DK 2125264 T3 20101115; EP 2125264 A1 20091202; EP 2125264 B1 20100721; ES 2345298 T3 20100920; JP 2010517778 A 20100527; JP 5141921 B2 20130213; MX 2009008098 A 20091214; PL 2125264 T3 20101231; PT 2125264 E 20100802; RU 2009132665 A 20110310; RU 2448799 C2 20120427; US 2010139357 A1 20100610; US 9283611 B2 20160315
DOCDB simple family (application)
EP 2007010053 W 20071121; AT 07856204 T 20071121; AU 2007345439 A 20071121; BR PI0721214 A 20071121; CA 2676966 A 20071121; CN 200780050758 A 20071121; DE 102007005011 A 20070201; DE 502007004524 T 20071121; DK 07856204 T 20071121; EP 07856204 A 20071121; ES 07856204 T 20071121; JP 2009547539 A 20071121; MX 2009008098 A 20071121; PL 07856204 T 20071121; PT 07856204 T 20071121; RU 2009132665 A 20071121; US 52526107 A 20071111