Preparation method of TA15 titanium alloy cold-rolled pipe

The invention discloses a preparation method of a TA15 titanium alloy cold-rolled pipe. The method comprises the following steps: 1, processing a TA15 titanium alloy cast ingot into a bar billet; 2, drilling and boring the bar blank to obtain a hollow bar blank; thirdly, the hollow bar blank is sleeved, heated, extruded, straightened and subjected to acid pickling, and an extruded pipe blank is obtained; fourthly, the extruded pipe blank is subjected to multi-pass rolling, and a rolled pipe is obtained; and 5, peeling and boring the rolled pipe to obtain the TA15 titanium alloy cold-rolled pipe. By means of equipment selection, blank preparation, rolling procedure design and parameter control, the TA15 titanium alloy pipe is successfully prepared through the cold rolling process, the quality of the TA15 titanium alloy cold-rolled pipe is guaranteed, the yield is increased, the production cost is reduced, and the preparation process is simple, easy to implement, suitable for industrial production and suitable