CNC surface machining method

The machining method of CNC workpiece surface depends on the technical requirements of machined surface. However, it should be noted that these technical requirements are not necessarily the requirements specified in the part drawing, and sometimes they may be higher than the requirements on the part drawing due to process reasons. For example, because the datum does not coincide, the machining requirements of some CNC machining parts are raised. Or it may put forward higher processing requirements because it is used as a precision reference.

When the technical requirements of the surface of CNC machining parts are defined, the final processing method can be selected according to the requirements, and the processing methods of several steps and each step are determined. The selected CNC machining method should meet the requirements of parts quality, good processing economy and high production efficiency. Therefore, the following factors should be considered when selecting the processing method:

1. There is a large range of machining accuracy and surface roughness that any CNC machining method can obtain, but only in a narrow range is economical, and the machining accuracy in this range is economic. Therefore, when selecting the processing method, we should choose the corresponding processing method which can obtain the economic machining accuracy.
2. The properties of CNC machining parts should be considered.
3. The structural shape and size of CNC machining parts should be considered.
4. Productivity and economic requirements should be considered. In mass production, advanced technology with high efficiency should be adopted. Even can fundamentally change the manufacturing method of the blank, can reduce the amount of mechanical processing labor.
5. The existing equipment and technical conditions of the factory or workshop should be considered. When selecting the processing method, the existing equipment should be fully utilized, the potential of the enterprise should be tapped, and the enthusiasm and creativity of the workers should be brought into play. However, it is also necessary to continuously improve the existing processing methods and equipment, adopt new technologies and improve the technological level