METHOD OF WIRE PRODUCTION FROM (α+β)-TITANIUM ALLOY FOR ADDITIVE TECHNOLOGY WITH INDUCTION HEATING AND CONTROL OF THE PROCESS BY THE ACOUSTIC EMISSION METHOD Russian patent published in 2018 - IPC C22F1/18 B21B3/00 B21C23/08 

FIELD: metallurgy.

SUBSTANCE: invention relates to the field of metallurgy, namely to methods for treating titanium alloys with a pressure, and can be used in the manufacture of wire from (α+β)-titanium alloy for additive technology. Method of manufacturing wire from (α+β)-titanium alloys for additive technologies involves the workpiece heating and the workpiece deforming by drawing or rolling several passes. Workpiece heating is carried out by an induction method, and for a billet with a diameter of 8.0 to 4.0 mm, a nominal power of 50–70 kW and a frequency of 40–80 kHz are set, and for billets with a diameter from less than 4.0 to 0.4 mm, a nominal power of 20–40 kW and a frequency of 300–500 kHz are set. Deformation of the billet by drawing or rolling is carried out by heating the billet to temperature T_b=300–635 °C and heating the fiber or rollers to temperature T_f=300–650 °C, and the workpiece deformation rate is selected at each pass, depending on workpiece diameter. Workpiece is deformed under the temperature control of the fiber or rollers and the rate of deformation by the acoustic emission method by measuring the energy parameter in the zone of plastic deformation, value of which is not more than 0.04×10^-3 mV²s.

EFFECT: wire without welds with high strength and ductility is produced.

3 cl, 1 tbl, 3 dwg, 9 ex