What are the difficulties in the CNC machining process of titanium alloys?

There are multiple difficulties in the CNC Machining process of titanium alloys, mainly due to the special physical and chemical properties of titanium alloy materials. The poor thermal conductivity of titanium alloy makes it difficult for cutting heat to diffuse during cutting, which leads to a rapid increase in tool temperature and subsequently causes rapid wear and cracking of the tool. This not only shortens the service life of the tool, but may also lead to tool collapse during the machining process, increasing machining costs and risks. The low elastic modulus and large elastic deformation of titanium alloy make it easy for the workpiece to rebound during processing, increasing the friction between the tool and the workpiece and further exacerbating tool wear. In addition, changes in cutting pressure may also cause vibrations in the workpiece, affecting machining accuracy and surface quality. Titanium alloys have high chemical reactivity and are prone to react with tool materials, leading to increased wear of the tools. This chemical wear not only affects the service life of the tool, but may also have a negative impact on machining accuracy and surface quality. The cutting machinability of titanium alloy is also poor, which is prone to chip accumulation and tool sticking, which may lead to increased cutting force and cutting temperature, further exacerbating tool wear and collapse. To overcome these difficulties, a series of measures need to be taken. For example, selecting appropriate tool materials and cutting parameters, optimizing cutting processes, reducing cutting temperatures and cutting forces; Using methods such as coolant processing and vibration processing to improve processing conditions; And design fixtures and clamping methods reasonably to reduce the vibration and deformation of workpieces during the machining process.