Five axis machining is a CNC Machining mode that involves the movement of five coordinate axes. Five axis machining is commonly used in the aerospace field to process body components, turbine components, and impellers with free-form surfaces. When there is a problem with the spindle of the five axis machining, the following measures can be taken: 1, readjust the machining parameters: If the spindle noise is caused by excessive machining load, you can try readjusting the machining parameters to reduce the machining load and avoid spindle noise. 2. Replace aging parts: If the spindle problem is caused by aging parts, the corresponding parts need to be replaced. The above methods are for reference only. It is recommended to contact professional technicians to inspect and repair the spindle.