Method of and device for making bent- or torsion loaded structural steel beams with U or V profile

摘要

A material strip is cut on its longitudinal edges (2) and at least these long edges are compressed in order to produce pressure tensions. The device incorporates a buttress (4) with a holding down device (5) for the material strips or the arm (6) of the U- or V-shaped support. A press tool (8) compresses the longitudinal edges of the component part tensioned between the buttress and the holding down device. The press tool (8) has an elongated projection (9) for impressing the longitudinal grooves (3) and evolving from the projection is an elongated pressing surface (10). The press tool is movable orthogonally to the plane of the tensioned component part.