EP 1342515 A1 20030910 - Process for the manufacture of closed, hardened sections with no cross-sectional limits
Title (en)
Process for the manufacture of closed, hardened sections with no cross-sectional limits
Title (de)
Verfahren zur Herstellung geschlossener, gehärteter Profile ohne Begrenzung des Querschnittes
Title (fr)
Procédé de fabrication des sections fermées, trempées sans limitation de profile
Publication
Application
Priority
SE 0200682 A 20020307
Abstract (en)
Method for the manufacture of closed, hardened steel sections by hydroforming, a blank being placed in a substantially enclosing forming tool and openings in the blank being closed and connections for hydraulic fluid being provided to the inside of the blank and fluid being pumped into the blank at high pressure so that the blank is deformed according to the forming tool, the fluid being removed and the blank being hardened by heating and subsequent cooling. <IMAGE>
IPC 1-7
IPC 8 full level
B21D 26/033 (2011.01); C21D 8/10 (2006.01); C21D 7/12 (2006.01); C21D 9/00 (2006.01); C21D 9/08 (2006.01)
CPC (source: EP)
B21D 26/033 (2013.01); C21D 8/10 (2013.01); C21D 7/12 (2013.01); C21D 9/0025 (2013.01); C21D 9/08 (2013.01)
Citation (search report)
- [XY] DE 10012974 C1 20010315 - DAIMLER CHRYSLER AG [DE]
- [Y] EP 0494843 A1 19920715 - SCAMBIA IND DEV AG [LI]
- [A] DE 19642824 A1 19980423 - BARTELS HERMANN [DE]
- [A] US 6151940 A 20001128 - AMBORN ING PETER [DE], et al
- [PA] WO 02081115 A1 20021017 - COPPERWELD CANADA INC [CA], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
EP 1342515 A1 20030910; SE 0200682 D0 20020307; SE 0200682 L 20030121; SE 519170 C2 20030121
DOCDB simple family (application)
EP 03445005 A 20030117; SE 0200682 A 20020307