Due to the poor heat dissipation of titanium alloy raw materials, during the CNC machining process of titanium alloy, the material often adheres to the tool, causing significant wear to the cutting tool. The tool frequently fails and stops working, leading to excessive consumption of the tool and high resistance. Especially, the processing of shell – shaped workpieces is highly difficult. They are prone to tool vibration, which can cause deformation of the parts. The surface quality cannot be guaranteed, and tooth – shaped ripples are likely to appear. The processing risk is relatively high, and the accuracy cannot be ensured either. Therefore, machining titanium alloy is quite challenging.
Mechanical properties of titanium alloy:
- Titanium alloy has the characteristic of work – hardening. With a relatively low elastic modulus, titanium alloy has better elasticity compared to steel. Therefore, excessive cutting force should be avoided to ensure minimal workpiece spring – back. Thin – walled parts tend to deform under the pressure of CNC machining tools, causing chattering, friction, and even tolerance issues.
- For the machining of titanium alloy workpieces in medical device components, there are high requirements for the workpiece material, machining accuracy, surface finish, etc. This requires a highly reliable processing system.
Titanium alloy has excellent properties such as high strength, corrosion resistance, high – temperature resistance, and fatigue resistance. It has been increasingly and widely used in fields such as aviation, aerospace, nuclear energy, and medical devices.
