CNC lathe processing methods can generally be divided into the following categories:

1. Turning: This is one of the most basic processing methods of CNC lathes. During the turning process, the workpiece is fixed and rotated on the spindle, while the tool moves along the axial direction of the workpiece, gradually removing excess material from the workpiece to form the desired shape.

2. Turning the outer circle: It is one of the most basic processing methods in lathe processing. Through the radial movement of the tool on the outer surface of the workpiece, the outer surface of the workpiece is processed into a cylindrical or tapered shape.

3. Turning the inner circle: It is similar to turning the outer circle on a CNC lathe, but the movement direction of the tool is opposite. It is used to process the cylindrical or tapered surface of the inner hole of the workpiece.

4. Turning the end face: CNC lathe cuts the end face of the workpiece into a flat surface or a specific shape.

5. Thread turning: Through the thread processing function of CNC lathe, internal threads and external threads can be processed.

6. Turning special-shaped surfaces: Using the CNC function of CNC lathes, complex curves on the surface of the workpiece can be processed.

7. Turning edges and corners: Through the tool path control of the CNC lathe, the edges and corners of the workpiece can be processed.

8. Turning and boring: Using special tools on CNC lathes for hole processing, the inner hole of the workpiece can be processed.

These processing methods can be used alone or in combination. According to the requirements and shapes of the workpiece, the corresponding processing method is selected to complete the processing task.