EP 1000678 A3 20041027 - Hollow profile or simular workpiece for deforming by high internal pressure, method of making a light metal profile and apparatus therefor
Title (en)
Hollow profile or simular workpiece for deforming by high internal pressure, method of making a light metal profile and apparatus therefor
Title (de)
Hohlprofil od.dgl. Werkstück zum Umformen durch Innenhochdruck, Verfahren zum Herstellen eines Profils aus Leichtmetall und Vorrichtung dafür
Title (fr)
Profilé creux ou pièce semblable pour déformation par haute pression interne, procédé pour fabriquer un profil en métal léger et dispositif utilisé pour sa fabrication
Publication
Application
Priority
DE 19851327 A 19981106
Abstract (en)
[origin: EP1000678A2] The hollow profiled workpiece is made of a metal alloy with end and side walls forming corners with different thicknesses. Internal high pressure is exerted by a fluid medium on the interior of the hollow profile. A thinner-walled end piece starting from an end section (20) is next to the thicker wall of the end (14) and side (16) walls forming a corner.
IPC 1-7
IPC 8 full level
B21C 23/14 (2006.01); B21D 26/02 (2011.01); B21D 26/033 (2011.01); B21D 26/053 (2011.01); E04C 3/06 (2006.01); E04C 3/04 (2006.01)
CPC (source: EP)
B21C 23/14 (2013.01); B21D 26/033 (2013.01); B21D 26/053 (2013.01); B21D 35/006 (2013.01); E04C 3/06 (2013.01); E04C 2003/0421 (2013.01); E04C 2003/043 (2013.01); E04C 2003/0465 (2013.01)
Citation (search report)
- [XA] EP 0620056 A1 19941019 - GEN MOTORS CORP [US]
- [XA] EP 0733539 A1 19960925 - PORSCHE AG [DE], et al
- [A] US 4826238 A 19890502 - MISONO YOSHIMASA [JP], et al
- [A] DE 19644220 C1 19971218 - DAIMLER BENZ AG [DE]
- [X] US 5595086 A 19970121 - SCHERF THOMAS W [US]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19851327 A1 20000511; EP 1000678 A2 20000517; EP 1000678 A3 20041027
DOCDB simple family (application)
DE 19851327 A 19981106; EP 99810965 A 19991022