The cutting path is the trajectory and direction of the tool relative to the workpiece during the index control machining process. The rational choice of processing route is very important because it is closely related to the precision and surface quality of the parts. The following points are mainly considered in determining the cutting path: 1. To ensure the accuracy of the parts required for machining. 2. It is convenient for numerical calculation and reduces the programming workload. 3. Seek the shortest processing route and reduce the empty knife time to improve processing efficiency. 4. Minimize the number of program segments. 5. To ensure the roughness of the workpiece contour surface after processing, the final contour should be arranged for the last pass.
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