EP 0819482 B1 20010328 - Process for forming a concave container out of a blank
Title (en)
Process for forming a concave container out of a blank
Title (de)
Verfahren zum Formen eines konkaven Behälters aus einer Blechplatine
Title (fr)
Procédé de formation d'un récipient concave à partir d'un flan de tole
Publication
Application
Priority
FR 9609046 A 19960716
Abstract (en)
[origin: EP0819482A1] The method involves bending a metal sheet between dies (16B) and a matrix (30), first with the edge of the blank held by a clamp die (15), and then with its edge released. The sheet metal blank is subjected to a number of stamping operations between dies and matrices of different shapes. Each stage increasing its concavity and depth, leaving an edge (24) which lies perpendicular to its base to form a cylindrical collar for one end of the container.
IPC 1-7
IPC 8 full level
B21D 51/08 (2006.01); B21D 51/24 (2006.01)
CPC (source: EP)
B21D 51/08 (2013.01); B21D 51/24 (2013.01)
Designated contracting state (EPC)
BE CH DE ES FR GB IE IT LI NL PT
DOCDB simple family (publication)
EP 0819482 A1 19980121; EP 0819482 B1 20010328; DE 69704400 D1 20010503; DE 69704400 T2 20011031; ES 2157536 T3 20010816; FR 2751247 A1 19980123; FR 2751247 B1 19981016; PT 819482 E 20010928
DOCDB simple family (application)
EP 97401716 A 19970716; DE 69704400 T 19970716; ES 97401716 T 19970716; FR 9609046 A 19960716; PT 97401716 T 19970716