Cutter for machining titanium alloy impeller

According to the cutter for machining the titanium alloy impeller, a hollow hole phi d1 is formed in the cutter, and the hollow hole phi d1 extends from the end face of a cutter handle clamping part to the interior of a cutter cutting edge part. According to the utility model, the hollow hole phi d1 is formed inside the cutter, so that the hollow cutter with the damping performance is formed, and the cutter with the damping performance can reduce resonance generated during cutting of the cutter; and the machining quality of the titanium alloy impeller can be improved by reducing resonance generated during cutting of the cutter. 一种加工钛合金叶轮用的刀具，在刀具的内部设置有中空孔φd1，该中空孔φd1从刀柄夹持部分的端面延伸至刀具切削刃部分的内部。本实用新型通过在刀具的内部设置有中空孔φd1，形成了中空式带阻尼性能的刀具，这种带阻尼性能的刀具能够减少刀具切削时产生的共振，在对钛合金叶轮进行加工时，通过减少刀具切削时产生的共振进而可以提高钛合金叶轮的加工质量。