CNC machining refers to the processing with CNC machining tools. CNC index controlled machine tool is programmed by NC machining language, usually G code. NC machining G code language tells CNC machine tool which Cartesian position coordinates, and controls the tool feed speed and spindle speed, as well as tool converter, coolant and other functions. In CNC machining, the determination of processing route should follow the following principles.
1、 The accuracy and surface roughness of the workpiece to be processed shall be guaranteed.
2、 It can shorten the processing route, reduce the idle travel time and improve the processing efficiency.
3、 Simplify the workload of numerical calculation and simplify the processing program.
4、 For some reusable programs, subroutines should be used.
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