The processing method of precision parts includes using the programmability of the machining center to reasonably compile the numerical control machining program, and optimizing the cutting parameters by utilizing the humanized characteristics of the machining center. Reasonable selection of tool geometry and the use of ordinary high-speed steel drills and end mills to process high-precision and large-aperture ratio titanium alloy holes. And the practicality of improving the tool, optimizing the cutting parameters and the processing method is verified by the processing of the actual sample.

According to the processing technology, the difficulties of precision machining will be as follows:

(1) Extremely high rotation accuracy, stable rotation, no vibration spindle, and spindle components are the core to ensure the machining accuracy of precision machine tools.

(2) Choose a precision machining machine tool with high precision, high rigidity, high stability and high automation. The selection of machining tools in precision machining is very important and should be strictly selected according to the requirements.

(3) It is difficult to grasp the stiffness and thermal deformation of the process system, which affects the size of the parts and is prone to errors.

(4) The size requirements for precision machining are very strict. When the removal layer is thinner, the shear stress on the machined surface is greater, and the material is less likely to be removed.