The differentiation of CNC machining procedures can generally be carried out in the following ways:
Concentrated division method is according to the tool used to distinguish the process, with the same tool CNC machining parts can finish all the parts. Using a second knife, a third knife to do whatever else they can do. In this way, the number of tool changes can be reduced, the time of flight can be tightened, and unnecessary positioning errors can be reduced. In order to process parts on CNC machining content of many parts, according to its structural characteristics will be processing part dividends several parts, such as internal shape, shape, surface or plane. Generally first processing plane, positioning surface, after processing holes;
First processing simple shape, and then processing messy shape; First machining parts with low precision, and then machining parts with higher precision requirements. With rough and fine CNC machining sequence method on CNC machining shape of the parts, due to the deformation that may occur after rough machining and need to be calibrated, so generally speaking, where to rough and fine machining will be the work.
To sum up, when distinguishing the process, we must depend on the structure and technology of the parts, the function of the machine tool, the number of CNC machining content of the parts, the number of devices and the flexible grasp of the production arrangement of the unit. Also advocate the selection of process concentration criteria or selection of process dispersion criteria, according to the actual situation to confirm, but move to seek reasonable.
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