1.It is most suitable for many kinds of small and medium batch parts. With the gradual decline of the manufacturing cost of numerical control machine tools, the situation of processing large quantities of parts has appeared , Whether it's domestic or foreign.

2. When processing small batch and single piece production, if it can shorten the debugging time of program and the preparation time of tooling, it can also be selected.

3. High precision parts. When the material, finishing allowance and tool angle of workpiece and tool are fixed, the surface roughness depends on cutting speed and feed speed. Ordinary machine tools have constant speed, and the cutting speed is different with different diameters, But for example, CNC lathe has the function of constant linear speed cutting. When turning the end face and different diameters of the outer circle, the same linear speed can be used to ensure that the surface roughness value is small and consistent. When machining surfaces with different surface roughness, the smaller the surface roughness is, the higher the surface roughness is. Variability is very good, which is difficult to achieve in ordinary machine tools.

4. Parts with complex contour and shape. Any plane curve can be approximated by straight line or arc. CNC machine tool has the function of arc interpolation, which can process all kinds of complex contour parts.