METHOD FOR MANUFACTURE OF (α+β)-TITANIUM ALLOY WIRE FOR ADDITIVE TECHNOLOGY WITH INDUCTION HEATING Russian patent published in 2019 - IPC C22F1/18 B21B3/00 B21C23/08 

FIELD: technological processes.

SUBSTANCE: invention relates 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 for manufacturing wire from (α+β)-titanium alloys for additive technologies involves heating the workpiece and deforming the workpiece by drawing or rolling several passes. Heating of the billet is carried out by induction method in installations with a rated power of 50–80 kW and a frequency of 40–80 kHz for billets with a diameter of 8.0 to 4.0 mm and with a nominal power of 10–40 kW and a frequency of 300–500 kHz for blanks with a diameter from less than 4.0 to 1.6 mm. Workpiece is deformed by drawing or rolling by heating the workpiece (T_w) to temperature T_w=300–635 °C and heating of the fiber or rollers (T_f) to temperature T_f=300–650 °C. Deformation velocity (V) of the workpiece is selected at each pass, depending on the diameter (d) of the workpiece: V=(2–10) m/min for the diameter d=(from 8.0 to 7.0) mm, V=(10–15) m/min for the diameter d=(from less than 7.0 to 5.0) mm, V=(15–20) m/min for the diameter d=(from less than 5.0 to 4.0) mm, V=(20–30) m/min for the diameter d=(from less than 4.0 to 3.0) mm, V=(30–40) m/min for the diameter d=(from less than 3.0 to 2.0) mm, V=(40–60) m/min for the diameter d=(from less than 2.0 to 1.6) mm. Obtain wire with a single piece without welded joints with high strength and ductility and low anisotropy of mechanical properties along the length of the wire.

EFFECT: quality of the wire is increased.

3 cl, 2 dwg, 1 tbl, 9 ex