Titanium alloy has a low thermal conductivity, only 1/4 of steel, 1/13 of aluminum, and 1/25 of copper. Due to the slow heat dissipation in the cutting area, it is not conducive to thermal balance. During the cutting process, the heat dissipation and cooling effects are poor, making it easy to form high temperatures in the cutting area. After processing, the deformation and rebound of the parts are large, resulting in an increase in cutting tool torque, rapid wear of the cutting edge, and a decrease in durability. Secondly, the low thermal conductivity of titanium alloy makes it difficult to dissipate the cutting heat accumulated in a small area near the cutting tool. The friction of the rake face is increased, which makes it difficult to discharge chips. The cutting heat is not easy to dissipate, accelerating tool wear. Titanium alloys have high chemical activity and are prone to react with cutting tool materials during processing at high temperatures, resulting in deposition and diffusion, resulting in phenomena such as sticking, burning, and cutting tool breakage.

Titanium alloy materials have many advantages and disadvantages, including high hardness, low plasticity, low thermal conductivity, large elastic deformation, and low elastic modulus. Therefore, during the processing of titanium alloys, a small thermal conductivity will inevitably cause the cutting temperature of the material to be too high; A small specific heat will inevitably cause the local temperature rise of the material to be too fast, thereby reducing the service life of the cutting tool; Low elastic modulus will aggravate the processing rebound of material surface, which will lead to tool wear or blade collapse; In high-temperature environments, strong chemical activity will inevitably intensify its chemical interactions with nitrogen, hydrogen, and oxygen, thereby increasing the difficultyof mechanical processing. In addition, the titanium alloy machining process, cutting conditions, tool materials, and cutting time all affect the overall efficiency of cutting. Therefore, the titanium alloy material cutting process must be strictly controlled in relevant aspects

Titanium alloy materials have many advantages and disadvantages, which seriously affect the cutting process of titanium alloy materials. Therefore, the cutting process of titanium alloy materials must fully consider the possible influencing factors and the characteristic requirements that must be met. Especially, the cutting process of titanium alloy materials should be controlled from the aspects of tool material, cutting fluid, machining process parameters, and tool geometric parameters, To improve the comprehensive efficiency of titanium alloy material processing.

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