EP 0524098 B1 19950222 - Method and punch for deep-drawing containers with a continuous wall.
Title (en)
Method and punch for deep-drawing containers with a continuous wall.
Title (de)
Verfahren und Stempel für das Tiefziehen von Behältern mit regelmässiger Wandung.
Title (fr)
Procédé et poinçon d'emboutissage pour la fabrication de récipients à paroi régulière.
Publication
Application
Priority
FR 9109053 A 19910717
Abstract (en)
[origin: EP0524098A1] The invention relates to a method for deep-drawing blanks of flat metal products having undergone a drawing or rolling operation, with a view to carrying out subsequent deep-redrawing or repeated-passing operations or with a view to manufacturing flanged containers, in particular cylindrical containers, characterised in that a punch is used whose tip has a variable transition (coupling) radius which is determined as a function of the anisotropic characteristics of the blank material. Advantageously the next step is an operation for grinding the bottom of the container by using a punch having a constant transition (coupling) radius. Application to the manufacture of metal tumblers. <IMAGE>
IPC 1-7
IPC 8 full level
B21D 22/20 (2006.01)
CPC (source: EP)
B21D 22/20 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0524098 A1 19930120; EP 0524098 B1 19950222; AT E118705 T1 19950315; DE 69201465 D1 19950330; DE 69201465 T2 19950713; DK 0524098 T3 19950731; ES 2070605 T3 19950601; FR 2679158 A1 19930122; FR 2679158 B1 19950721
DOCDB simple family (application)
EP 92402056 A 19920716; AT 92402056 T 19920716; DE 69201465 T 19920716; DK 92402056 T 19920716; ES 92402056 T 19920716; FR 9109053 A 19910717