FIELD: technological processes.
SUBSTANCE: invention relates to metal forming. Method involves shaping of blank by its drawing through forming tool with heating from deformation heat and friction due to increase of sliding on surface of contact between deforming tool and billet to allow heat emission, sufficient for heating billet to preset temperature. Possibility of-round cross-section, for example, flat is ensured by fact that two shaping rolls at the initial stage of treatment of roll in direction of workpiece drawing on subsequent stationary stage rollers rotation against direction of blank drawing, specified heating temperature is provided by selecting ratio of speed of drawing and rotational speed of rolls.
EFFECT: processing of off-round cross-section.
1 cl, 3 dwg, 2 ex
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