Global Patent Index - EP 0820821 B1

EP 0820821 B1 2001-12-05 - Process for cutting out a blank from a sheet metal plate

Title (en)

Process for cutting out a blank from a sheet metal plate

Title (de)

Verfahren zum Ausschneiden eines Zuschnittteils aus einer Blechplatte

Title (fr)

Procédé de découpage d'une pièce dans un flan de tôle

Publication

EP 0820821 B1 (FR)

Application

EP 97401592 A

Priority

  • FR 9609358 A
  • FR 9703625 A

Abstract (en)

[origin: EP0820821A1] The procedure which uses a die (2) and a matrix (4) with a flange clamp (6) consists of making an indentation (9) to a given depth (p) in the sheet metal (1), and then cutting out the workpiece with a separate cutting die or with the same die used for the indentation. Separate indentations of the same shape can be made in two metal sheets which are then placed one on top of the other with the indentations aligned for cutting out with a single die.

IPC 1-7 (main, further and additional classification)

B21D 28/16

IPC 8 full level (invention and additional information)

B23D 15/02 (2006.01); B21D 28/10 (2006.01); B21D 28/16 (2006.01); B21D 28/24 (2006.01); B21D 28/26 (2006.01)

CPC (invention and additional information)

B21D 28/16 (2013.01); B21D 28/10 (2013.01); B21D 28/26 (2013.01)

Designated contracting state (EPC)

BE DE ES FR GB IT NL

EPO simple patent family

EP 0820821 A1 19980128; EP 0820821 B1 20011205; DE 69708777 D1 20020117; DE 69708777 T2 20020829; ES 2171855 T3 20020916; FR 2751571 A1 19980130; FR 2751571 B1 19991022; JP H1085860 A 19980407

INPADOC legal status


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2002-01-17 [REF] CORRESPONDS TO:

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