摘要 |
Upon analyzing a processing program ( 5 ) in an analyzer ( 11, 31 ), a numerical control apparatus extracts information about a contact position between a tool and a workpiece, and based on the information, it calculates a main spindle revolution instruction value in a main spindle revolution calculator 14, 38 ). In a CAM system, information about the contact position between the tool and the workpiece to be supplied to the numerical control apparatus is calculated and added to the processing program.
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