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How to divide cnc machining process?
The division of cnc process can generally be carried out according to the following methods:
1、The tool centralized sorting method is to divide the process according to the tool used, and use the same tool cnc to process all the parts that can be completed on the part.Use the second knife and the third to complete other parts that they can complete. So reduces the number of tool changes, compresses the lost motion time, and reduces unnecessary positioning errors.
2、For parts processed by cnc with the method of processing parts sorting, the processed part can be divided into several parts according to its structural characteristics, such as inner shape, shape, curved surface or plan。Generally, the plane and positioning surface are processed first, and then the hole is processed;Processing simple geometric shapes first, then processing complex geometric shapes；The parts with lower precision are processed first, and then the parts with higher precision are processed.
3、Rough and fine cnc machining ordering method For parts that are prone to cnc machining deformation, due to the deformation that may occur after rough machining, the shape needs to be corrected, so in general, the rough and finish machining must be separated from the process.
When dividing the process, it is necessary to flexibly grasp the structure and manufacturability of the parts, the function of the machine tool, the number of CNC machining parts, the number of installations and the production organization of the unit. In addition, it is recommended to adopt the principle of process concentration or the principle of process dispersion, which should be determined according to the actual situation, but it must be reasonable.
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