FIELD: working of metal.
SUBSTANCE: invention relates to the field of processing metal by pressure and can be used in bridge and crane structures, in carrying systems of surfaces, floors of various buildings and structures. The method for reshaping a round pipe includes processing operations in changing the cross-section. The cross-section of the pipe is given a rectangular shape with an aspect ratio of 1/3 along the middle, middle line of the section.
EFFECT: increase in the carrying capabilities of the pipe profile due to an increase in the bending strength characteristics, simplification of the cross-section shape, reduction in the construction height, facilitation of manufacture thereof are provided.
1 cl, 4 dwg, 3 tbl
