The machining method of CNC workpiece surface depends on the technical requirements of machining surface. However, it should be noted that these technical requirements are not necessarily the requirements of the regulations of the part drawing, and may occasionally be higher than the requirements of the part drawing in some aspects due to technological reasons. For example, the machining requirements for the surface of some CNC machining parts are raised due to the misalignment of datum. Or higher machining requirements may be put forward because it is used as a precision reference.
After understanding the technical requirements of each CNC workpiece surface, we can choose the final processing method that can guarantee the requirements, and we will definitely need several processing steps and processing methods of each step. The selected machining method of CNC machining parts should meet the requirements of parts quality, excellent machining economy and high manufacturing efficiency. For this reason, the following factors should be studied when choosing the processing method:
1. There is an equal boundary between the machining accuracy and the surface roughness of any CNC machining method, but only in a narrow boundary is economic. The machining accuracy of this boundary is economic machining accuracy. Therefore, when choosing the processing method, we should choose the corresponding processing method which can obtain the economic processing precision.
2. The nature of raw materials for CNC machining should be studied.
3. To study the structure and size of CNC parts.
4. To study the production rate and economic requirements. When making a large number of products, we should choose advanced technology with high efficiency. It is even better to fundamentally change the manufacturing mode of blank, which can reduce the workload of machining.
5. To study the existing equipment and technical conditions of the workshop or workshop, we should fully defraud the existing equipment, tap the potential of the enterprise, and develop the enthusiasm and creativity of the workers when choosing the processing mode. But it is also necessary to study and constantly improve the existing processing methods and equipment, select new technology and improve the level of technology.
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