FIELD: metallurgical industry branch, possibly different operations of plastic working of metals.
SUBSTANCE: method comprises steps of applying to blank pulses of electric current during plastic working. Pulses of electric current of predetermined intensity, duration and repetition frequency are supplied to blank at rolling by means of rolls rotating mutually opposite, at drawing by means of draw plates, at forming by means of deforming tool, at flattening between deforming cylinders rotating mutually opposite or at flattening in standing-wave mode between blocks driven to rocking motion due to ultrasound action. At rolling, drawing or forming, pulse repetition frequency is determined according to given formula; at flattening frequency corresponds to or it is multiple to frequency of ultrasonic oscillations set by ultrasound generator in predetermined frequency range.
EFFECT: improved efficiency, physical and mechanical properties of metal.
19 cl, 10 dwg
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