EP 1698410 A1 20060906 - Tube for hydroforming applications and method for hydroforming a tube
Title (en)
Tube for hydroforming applications and method for hydroforming a tube
Title (de)
Rohr zum Innenhochdruckumformen sowie Verfahren zum Innenhochdruckumformen eines Rohres
Title (fr)
Tube adapté pour l'utilisation dans un procédé d'hydroformage et procédé d'hydroformage d'un tube
Publication
Application
Priority
EP 05075534 A 20050304
Abstract (en)
The invention relates to a straight steel tube for hydroforming applications, especially for producing the A-pillar, B-pillar or C-pillar of an automobile. According to the invention, the steel has a tensile strength of more than 400 MPa, wherein the tube has a wall thickness of 1 - 4 mm, and wherein the tube has been provided with a longitudinal dimple over at least 25 % of the length of the tube, the tube having a mean diameter between 30 mm and 200 mm in the region of the dimple. The invention also relates to a method for hydroforming a steel tube, especially for hydroforming the A-pillar, B-pillar or C-pillar of an automobile.
IPC 8 full level
B21D 26/033 (2011.01); B21D 53/88 (2006.01); B62D 23/00 (2006.01); B62D 25/04 (2006.01)
CPC (source: EP)
B21D 26/033 (2013.01); B21D 53/88 (2013.01)
Citation (search report)
- [A] WO 2005018847 A1 20050303 - THYSSENKRUPP STAHL AG [DE], et al
- [A] EP 1035994 B1 20010919 - COSMA INT INC [CA]
- [A] EP 1502840 A1 20050202 - DANA CORP [US]
- [A] EP 0862956 A1 19980909 - DAIMLER BENZ AG [DE]
- [A] US 5953945 A 19990921 - HORTON FRANK A [US]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1698410 A1 20060906; EP 1698410 B1 20080130; AT E385206 T1 20080215; DE 602005004598 D1 20080320; DE 602005004598 T2 20081211; ES 2298922 T3 20080516
DOCDB simple family (application)
EP 05075534 A 20050304; AT 05075534 T 20050304; DE 602005004598 T 20050304; ES 05075534 T 20050304