METHOD OF MAKING BARS FROM TITANIUM AND ALLOYS BASED THEREON Russian patent published in 2025 - IPC B21C19/00 B21C1/02 B21C37/04 B23P9/00 B23P15/00 

Abstract RU 2840551 C1

FIELD: performing operations.

SUBSTANCE: invention relates to a method for producing rods from titanium and titanium-based alloys. Bar blank is hot rolled to bar, bar is subjected to rough centreless turning to remove off-grade surface ply, bar is calibrated or cold drawn and calibrated. Bar is cut to lengths, bar is straightened at straightening temperature of 600-900 °C by stretching method with elongation of not more than 1%. Bar is cooled under tension to straightness of bar of less than 1 mm/m and finish centreless turning of bar surface is performed. Bar calibration is carried out with relative deformation of not more than 18% by drawing through die plate with drawing speed of not more than 2 m/min or by forging on rotary forging machine with displacement speed of not more than 2 m/min.

EFFECT: bars are made from titanium and alloys on its basis with diameter from 5 to 15 mm with required dimensional accuracy.

2 cl, 1 tbl, 8 ex

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RU 2 840 551 C1

Authors

Kharkovskii Dmitrii Nikolaevich

Kropachev Aleksei Sergeevich

Kharin Aleksandr Aleksandrovich

Bazhenov Igor Nikolaevich

Dates

2025-05-26Published

2024-05-23Filed