The alloy has the advantages of high strength, high heat strength, good corrosion resistance and so on. It has been favored in the fields of aerospace and aviation, and it has been widely used in military and civilian fields. At the same time, because the titanium alloy material itself also has a small thermal conductivity, high temperature chemical activity, low elastic modulus, and other metal materials, such as the large coefficient of friction, even at lower cutting speed machining titanium alloy will appear cutting temperature High tool wear, low tool life and poor processing surface quality. This makes the titanium alloy a typical difficult to process materials.