Numerical control variable parameter cutting method

The invention belongs to the mechanical manufacturing technology and relates to an improvement of a numerical control cutting method. When a cutting process is carried out by a numerical control machine tool, a cutter and the choice of radial feeding amount are the same as the existing cutting method; the numerical control cutting method is characterized in that: last figures of the rotating speed S of each cutter and the radial feeding amount F are changed. After a part is processed by the cutting method in the invention, the surface roughness of the part is good, cutter shaking is not easy to occur during the machining process and the loss of the cutter is small.