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Abstract

A machining program execution method for an NC device, in which parameter values are automatically modified in accordance with the machining types in continuously executing machining operations of different machining types, such as rough machining, intermediate finish machining, finish machining, etc., by the NC device. A memory in the NC device is previously stored with the parameters to be modified in accordance with the machining types and the parameter values for each machining type, and machining programs and machining types are associated with each other and inputted to the NC device. At the start of execution of the individual machining programs, the machining types of the machining programs as objects of execution are discriminated by the designation of the machining type for the machining program and the parameter values are automatically modified in accordance with the machining type of the machining program. Thus, the machining operation of a machine tool can always be controlled by using optimum parameters.

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First Claim