EP 1654078 A1 20060510 - METHOD FOR PRODUCING ONE-PIECE HOLLOW BODIES, HOLLOW BODY, AND USE OF THE SAME
Title (en)
METHOD FOR PRODUCING ONE-PIECE HOLLOW BODIES, HOLLOW BODY, AND USE OF THE SAME
Title (de)
VERFAHREN ZUM HERSTELLEN EINTEILIGER HOHLKÖRPER, HOHLKÖRPER UND VERWENDUNG DES HOHLKÖRPERS
Title (fr)
PROCEDE DE FABRICATION DE CORPS CREUX MONOPIECES, CORPS CREUX ET UTILISATION DU CORPS CREUX
Publication
Application
Priority
- DE 2004001337 W 20040625
- DE 10337929 A 20030814
Abstract (en)
[origin: WO2005016570A1] The invention relates to a method for producing weldable, highly resistant hollow bodies (1) from a tubular blank, to which a graduation of the diameter and/or the wall thickness with at least a conical or a stepped transition is applied by means of cold forming by flow-turning (A). The invention also relates to a hollow body and to the use thereof. The aim of the invention is to provide a method that enables an application-optimised, highly resistant, weldable hollow body (1) to be formed with low production costs and a high level of flexibility in the shaping and production thereof. To this end, the forming process is carried out by means of flow-turning, at least the formed region being cooled during the forming process.
IPC 1-7
IPC 8 full level
B21D 22/16 (2006.01); B21D 41/04 (2006.01)
CPC (source: EP)
B21D 22/16 (2013.01); B21D 41/04 (2013.01)
Citation (search report)
See references of WO 2005016569A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005016570 A1 20050224; DE 10337929 A1 20050317; DE 112004002046 D2 20061005; EP 1654078 A1 20060510; EP 1654079 A1 20060510; WO 2005016569 A1 20050224
DOCDB simple family (application)
DE 2004001338 W 20040625; DE 10337929 A 20030814; DE 112004002046 T 20040625; DE 2004001337 W 20040625; EP 04738786 A 20040625; EP 04738787 A 20040625