cnc precision|What is cnc processing?

CNC machining, also called CNC machine tool processing, refers to processing carried out with CNC machine tool processing equipment. Because CNC machining is controlled by a computer after programming, CNC machining has stable machining quality, high precision, can process complex surfaces, and high machining efficiency. In the specific processing process, human factors and practical operation work experience guarantee the final processing quality at a very large level.
The zoning of the CNC machining process of CNC machine tools can generally be carried out in the following ways:
1. According to the common tool division process, use the same tool cnc to process all the positions on the part that can be performed. Use the second knife and the third knife to perform other positions where they can. In that way, the frequency of tool change can be reduced, and the time of empty tool can be shortened.
2. Divide the processed parts into multiple parts according to their structural characteristics, such as inner shape, appearance design, inclined plane or plan view, etc. Generally, the plan is processed first, the surface is accurately positioned, and then the hole is processed; the simple geometric shape is processed first, and then the complicated geometric shape is processed; the location with lower precision is processed first, and the location with higher precision is processed first.
3. The rough and fine CNC machining sequence method is used for parts that are prone to CNC machining deformation. Because of the possible deformation after rough machining, it must be corrected. Therefore, in general, all rough and fine machining are required. Separate the process flow. In general, when dividing the process flow, we must consider the structure and process performance of the parts.