Global Patent Index - EP 1287921 A3

EP 1287921 A3 20040303 - Method of making workpieces after internal hydroforming process

Title (en)

Method of making workpieces after internal hydroforming process

Title (de)

Verfahren zum Herstellen von Werkstücken nach dem Innenhochdruck-Umformverfahren

Title (fr)

Méthode de fabrication de pièces de travail apres le procédé par haute pression interne

Publication

EP 1287921 A3 20040303 (DE)

Application

EP 02018623 A 20020820

Priority

  • DE 10142076 A 20010830
  • DE 10211092 A 20020314

Abstract (en)

[origin: EP1287921A2] The system has process management taking into consideration axial die movement path resp. axial die force for internal pressure. The forming process is regulated with dependence upon the volume flow supply and the die movement resp. force.

IPC 1-7

B21D 26/02

IPC 8 full level

B21D 26/02 (2006.01); B21D 26/041 (2011.01); B21D 26/043 (2011.01)

CPC (source: EP)

B21D 26/041 (2013.01); B21D 26/043 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

EP 1287921 A2 20030305; EP 1287921 A3 20040303

DOCDB simple family (application)

EP 02018623 A 20020820