Generally speaking, CNC CNC lathes have the function of constant linear speed cutting. No matter about the end face or the outer circle of different diameters, they can be processed at the same linear speed, which ensures that the surface roughness value is common and relatively small. The general lathe is a constant speed, and the cutting speed is different with different diameters.
When the material of workpiece and tool, finish machining allowance and tool angle are fixed, the surface roughness depends on the cutting speed and feed speed.
When processing surfaces with different surface roughness, the lower feed speed is selected for the surface with low roughness, and the higher feed speed is selected for the surface with high roughness. The variability is very good, which is difficult to achieve in general lathes. Summarize parts with disorderly shapes. Arbitrary plane curves can be approximated by straight lines or arcs. CNC precision machining has the function of arc interpolation, which can process all kinds of miscellaneous parts. The application of cnc precision machining needs the careful use of operators.
