EP 1301292 B1 20040915 - METHOD FOR MAKING A STRUCTURAL ELEMENT HAVING A GENERALLY TUBULAR METAL WALL AND STRUCTURAL ELEMENT
Title (en)
METHOD FOR MAKING A STRUCTURAL ELEMENT HAVING A GENERALLY TUBULAR METAL WALL AND STRUCTURAL ELEMENT
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES STRUKTURBAUTEILS MIT EINER ROHRFÖRMIGEN METALLWAND UND STRUKTURBAUTEIL
Title (fr)
PROCEDE DE FABRICATION D'UN ELEMENT DE STRUCTURE AYANT UNE PAROI METALLIQUE DE FORME GENERALE TUBULAIRE ET ELEMENT DE STRUCTURE
Publication
Application
Priority
- FR 0102278 W 20010712
- FR 0009334 A 20000717
Abstract (en)
[origin: WO0205979A1] The invention concerns a method which consists in: cutting out in a metal sheet at least a planar plate (20) comprising a main part having the developed shape of the wall of the structural element and at least a matching overlapping and fixing part (26, 27, 28), folding the cut out plate (20) along a plurality of lines (23) so as to form the wall of the structural element comprising several annular sections non-aligned axially from the folded portions (22, 24,2 4', 25) of the main part of the cut out plate (20) and fixing by welding at least one matching overlapping and fixing part (26, 27, 28) on at least a folded portion (22, 24, 24', 25) and a second overlapping part. During welding, the one at least overlapping part (26, 27, 28) and the folded portion of the wall (22, 24, 24', 25) or the second overlapping part are maintained in elastic support one on the other, in a superimposed arrangement. Preferably, the welding is performed by transparency laser beam. The inventive structural element has numerous applications in a wide variety of industries.
IPC 1-7
IPC 8 full level
B21C 37/15 (2006.01); B21C 37/08 (2006.01); B21D 47/01 (2006.01)
CPC (source: EP KR US)
B21C 37/0803 (2013.01 - EP US); B21D 51/00 (2013.01 - KR); Y10T 29/49623 (2015.01 - EP US); Y10T 428/12264 (2015.01 - EP US); Y10T 428/12354 (2015.01 - EP US); Y10T 428/12375 (2015.01 - EP US); Y10T 428/12382 (2015.01 - EP US); Y10T 428/1241 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0205979 A1 20020124; WO 0205979 B1 20020321; AT E276057 T1 20041015; AU 7758701 A 20020130; CN 1246097 C 20060322; CN 1443098 A 20030917; DE 60105615 D1 20041021; DE 60105615 T2 20050203; EP 1301292 A1 20030416; EP 1301292 B1 20040915; FR 2811741 A1 20020118; FR 2811741 B1 20030627; JP 2004504148 A 20040212; JP 4617055 B2 20110119; KR 100698562 B1 20070321; KR 20030045776 A 20030611; TW 500890 B 20020901; US 2003150114 A1 20030814; US 2005127142 A1 20050616; US 6814275 B2 20041109; US 7381476 B2 20080603
DOCDB simple family (application)
FR 0102278 W 20010712; AT 01955416 T 20010712; AU 7758701 A 20010712; CN 01813000 A 20010712; DE 60105615 T 20010712; EP 01955416 A 20010712; FR 0009334 A 20000717; JP 2002511906 A 20010712; KR 20037000635 A 20030115; TW 90117317 A 20010716; US 33301403 A 20030115; US 95353404 A 20040930