FIELD: plastic working of metals, namely production of bent channels of increased strength steels.
SUBSTANCE: method for shaping bent channels of high-strength steels with thickness 7 = 8 mm comprises steps of successively from one transition to other bending up flanges of shape at predetermined bending radiuses; setting bending radiuses in each of two first passes equal to 1 - 2 mm; in third and in each of three last passes setting bending radius depending upon thickness of shape and in each intermediate pass reducing bending radius according to given relation.
EFFECT: improved rigidity of bent shapes.
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