The machining method of the surface of the cnc workpiece depends first on the technical requirements of the 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 technological reasons. For example, due to the non-coincidence of the reference, the processing requirements for some cnc machining surfaces are increased. Or because it is used as a precision benchmark, it may put forward higher processing requirements.
When the technical requirements of the surface of each cnc workpiece are clear, the final processing method can be selected to ensure the requirements, and the processing method of several work steps and each work step can be determined. The selected cnc machining method should meet the requirements of part quality, good processing economy and high production efficiency. To this end, the following factors should be considered when selecting the processing method:
1. Any kind of cnc machining method can obtain processing accuracy and surface roughness have a considerable range, but only in a narrow range is economic, the processing accuracy of this range is economic processing accuracy. Therefore, when selecting the processing method, the corresponding processing method that can obtain economic processing accuracy should be selected.
2. To consider the nature of the cnc workpiece material.
3. Consider the structure shape and size of the cnc workpiece.
4. Consider productivity and economic requirements. When mass production, high efficiency advanced technology should be used. It can even fundamentally change the manufacturing method of the blank, which can reduce the amount of labor in mechanical processing.
5. To consider the existing equipment and technical conditions of the factory or workshop. When selecting processing methods, we should make full use of existing equipment, tap the potential of enterprises, and give play to the enthusiasm and creativity of workers. However, it should also be considered to continuously improve the existing processing methods and equipment, adopt new technologies and improve the process level.
