EP 1628788 A1 20060301 - METHOD FOR PRODUCING A PERIPHERALLY CLOSED HOLLOW PROFILED ELEMENT
Title (en)
METHOD FOR PRODUCING A PERIPHERALLY CLOSED HOLLOW PROFILED ELEMENT
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES UMFÄNGLICH GESCHLOSSENEN HOHLPROFILS
Title (fr)
PROCEDE DE FABRICATION D'UN PROFILE CREUX FERME PERIPHERIQUEMENT
Publication
Application
Priority
- EP 2004004301 W 20040423
- DE 10323738 A 20030524
Abstract (en)
[origin: DE10323738B3] The method involves internal high-pressure shaping, squeezing the semi-finished product (5) in a closed tool (1) and expanding it with fluidic pressure to the final shape. The ends (9,10) of the semi-finished product are cut to form angled ends (12,13) before the squeezing process. The cutting contour and angle, between 6 and 10 degrees, are selected so that the ends are deformed by squeezing into an essentially flat shape and perpendicular to the longitudinal axis of the semi-finished product.
IPC 1-7
IPC 8 full level
B21D 26/033 (2011.01)
CPC (source: EP US)
B21D 26/033 (2013.01 - EP US); B21D 26/053 (2013.01 - EP US)
Citation (search report)
See references of WO 2004103602A1
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
DE 10323738 B3 20041118; CA 2526774 A1 20041202; DE 112004000725 D2 20061019; DE 502004003973 D1 20070712; EP 1628788 A1 20060301; EP 1628788 B1 20070530; JP 2006528075 A 20061214; US 2006248933 A1 20061109; WO 2004103602 A1 20041202
DOCDB simple family (application)
DE 10323738 A 20030524; CA 2526774 A 20040423; DE 112004000725 T 20040423; DE 502004003973 T 20040423; EP 04729065 A 20040423; EP 2004004301 W 20040423; JP 2006529701 A 20040423; US 55916504 A 20040423