本发明公开了一种增材制造制粉用高强钛合金棒的制备方法，包括以下步骤：一、将钛合金原料混合，得到混合料；二、将混合料压制，得到电极块；三、将电极块中频感应熔炼，得到圆柱坯料；四、将圆柱坯料打磨、倒角和焊接，得到焊接圆柱坯料；五、将焊接圆柱坯料真空自耗电弧熔炼，得到圆柱铸锭；六、将圆柱铸锭锻造，得到锻造棒；七、将锻造棒高温晶化和低温退火，得到高强钛合金棒。本发明通过中频感应熔炼配合真空自耗电弧熔炼和高温晶化，使高强钛合金棒的微观组织中形成独特的纳米级层次结构，保证了高强钛合金棒不会出现β斑，提高了高强钛合金棒的成分均匀性和抗拉强度，从而保证了高强钛合金棒满足增材制造制粉用的强度要求。

The invention discloses a preparation method for manufacturing high strength titanium alloy rod for powder making by additive, which comprises the following steps: 1. Mixing titanium alloy raw materials to obtain mixture; 2. Pressing mixture to obtain electrode block; 3. Medium frequency induction melting electrode block to obtain cylindrical blank; 4. Grinding, chamfering and welding cylindrical blank to obtain welded cylindrical blank; 5. Welding cylindrical blank The cylindrical ingot is obtained by vacuum consumable arc melting of the cylindrical billet; 6. Forging the cylindrical ingot to obtain the forged bar; 7. High strength titanium alloy bar is obtained by high temperature crystallization and low temperature annealing of the forged bar. The invention forms a unique nano level hierarchical structure in the microstructure of the high-strength titanium alloy rod through medium frequency induction melting, vacuum consumable arc melting and high-temperature crystallization, ensures that the high-strength titanium alloy rod will not appear beta spots, improves the composition uniformity and tensile strength of the high-strength titanium alloy rod, and thus ensures that the high-strength titanium alloy rod meets the strength requirements for additive manufacturing and pulverizing.