METHOD FOR MAKING CORRUGATED SHAPE AND SHAPE BENDING MILL FOR PERFORMING THE METHOD Russian patent published in 2000 - IPC

FIELD: plastic working of sheet materials at producing bent rolled shapes in shape bending mills. SUBSTANCE: method comprises steps of simultaneously bending sheet material in cross and longitudinal directions, remaining material in inlet of mill, in zone of metal raising from bent portion forming corrugations by means of upper and lower guides arranged on curvilinear, for example, on cone shaping surface. After shifting from cone surface to shaping plane, shape is formed in calibrating rolls. Guides of mill are in the form of row of shaping members such as skids, rollers mounted in lengthwise beams and coupled with cross pieces by means of supports that may move along cross pieces. Terminal guides have units providing their motion along cross pieces at mounting. EFFECT: enhanced quality of corrugated shapes, lowered energy consumption, simplified adjustment of mill. 4 cl, 6 dwg