The processing method of CNC workpiece surface first depends on the technical requirements of the processing surface. However, it should be noted that these technical requirements are not necessarily the requirements stipulated in the parts diagram, and sometimes due to technical reasons, they may be higher than the requirements of the parts diagram in some ways. If the benchmark is not overlapped, the processing requirements for the surface of certain CNC workpieces are improved. Or as a result of refined benchmark, higher processing requirements may be proposed.

After determining the technical requirements of each CNC workpiece surface, you can choose the final processing method that can ensure the requirements, so as to determine the processing methods of several steps and every step. The selected CNC machining methods should meet the requirements of parts, good processing economy, and high production efficiency. For this reason, the following factors should be considered when selecting the processing method:

1. Any CNC processing method can obtain a considerable range of processing accuracy and surface roughness, but only the economy is within a narrow range. The processing accuracy within this range is economic processing accuracy. Therefore, when choosing a processing method, the corresponding processing method should be selected to obtain the economic processing accuracy.

2. Consider the nature of CNC processing materials.

3. Consider the structural shape and size of the CNC processing parts.

4. Consider productivity and economic requirements. For large -scale production, effective and advanced technologies should be adopted. It can even fund the manufacturing method fundamentally, which can reduce the amount of labor.

5. Consider the existing equipment and technical conditions of factories or workshops. When selecting the processing method, we must make full use of existing equipment, tap the potential of the enterprise, and give full play to the enthusiasm and creativity of employees. However, we should also consider the continuous improvement of existing processing methods and equipment, the use of new technologies and the improvement of the technological level.