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After the alignment and program debugging are completed, the workpiece can enter the automatic processing stage. In the process of automatic machining, the operator should monitor the process of cutting to prevent the quality problems and other accidents caused by abnormal cutting.

Numerical control machining,The tool path is the movement path and direction of the tool relative to the workpiece in the process of index control,Reasonable tool path can improve machining accuracy and machining efficiency,Because it is closely related to CNC machining accuracy and surface quality of parts,tool path are mainly considered in determining the cutting route: 1. Ensure the machining accuracy of parts. 2. It is convenient for numerical calculation and reduces the workload of programming. 3. In order to improve the efficiency of CNC machining, it is necessary to find the shortest CNC machining route and reduce the idle time. 4. Minimize the number of program segments. 5. In order to ensure the roughness of workpiece contour surface after CNC machining, the final contour should be processed continuously by the last tool feed. 6. The tool's advance and retreat (cut in and cut out) routes should also be carefully considered, so as to minimize tool marks caused by tool stopping (elastic deformati

1、The cutting point can be set on the machined part, but note that thecutting point must be the reference position or the part that has been finished. Sometimes the cutting point is destroyed by cnc machning after first process, which will lead to the second process And the subsequent cutting point cannot be found.However, during the first process of tool setting, pay attention to the establishment of a relative cutting location where there is a relatively fixed size relation with the positioning reference。This position relative to the tool setting is usually set on the machine table or fixture