EP 0876226 B1 20011205 - ROLL-FORMING UTILIZING SPLITTING TECHNOLOGY
Title (en)
ROLL-FORMING UTILIZING SPLITTING TECHNOLOGY
Title (de)
FORMWALZEN MIT VERWENDUNG VON TRENNUNGSTECHNOLOGIE
Title (fr)
PROFILAGE PAR TECHNIQUE DE FENDAGE
Publication
Application
Priority
- IB 9700137 W 19970124
- US 59253896 A 19960126
Abstract (en)
[origin: WO9727009A1] A method is provided for roll-forming an I-beam structure having a web and a pair of opposing flanges at each end of the web. The method includes the steps of providing a flat blank having a thickness generally equal to a thickness of the web of the I-beam to be formed. The blank has a longitudinal axis, a central portion and opposing ends. Each of the blank ends is split along the longitudinal axis to form first and second flange portions at each of the ends. Each of the first and second flange portions has an edge directed away from the central portion. The flange portions are then bent about the longitudinal axis by moving each of the edges in a direction towards the central portion to form a mass of material at each of the blank ends. The mass of material is compacted at each of the blank ends to define the flanges. Each flange is disposed generally transverse with respect to the longitudinal axis and has a thickness generally equal to the thickness of the web.
IPC 1-7
IPC 8 full level
CPC (source: EP)
B21B 1/088 (2013.01); B21B 1/0815 (2013.01); B21B 1/12 (2013.01)
Designated contracting state (EPC)
AT DE ES FR GB IT
DOCDB simple family (publication)
WO 9727009 A1 19970731; AT E209973 T1 20011215; AU 1555197 A 19970820; CA 2244104 A1 19970731; CA 2244104 C 20060117; DE 69708844 D1 20020117; DE 69708844 T2 20020627; EP 0876226 A1 19981111; EP 0876226 B1 20011205; ES 2169347 T3 20020701
DOCDB simple family (application)
IB 9700137 W 19970124; AT 97901752 T 19970124; AU 1555197 A 19970124; CA 2244104 A 19970124; DE 69708844 T 19970124; EP 97901752 A 19970124; ES 97901752 T 19970124