Method for generating a machining program of a plunge mulling machine tool, comprising the steps of: establishing a machining to be performed on a workpiece; acquiring first machining information that indicates stable cut conditions of the machine tool for the workpiece; acquiring second machining information that indicates engagement cut conditions of the machine tool during the machining on the workpiece; carrying out a determination of the rotation speeds of the machine tool during the machining on the basis of the second machining information and the first machining information; wherein the machining program is generated on the basis of the determination carried out.

To provide a machine tool and a control device for the machine tool that allows a user to select the vibration condition according to an input number of rotations and an input number of vibrations. The control device (184) for the machine tool (180) includes: inputting means (182) for inputting a relative number of rotations or a relative number of vibrations of the cutting tool (130) and a workpiece (W), selecting means (183c) for making it possible to select a combination of each parameter consisting of a number of rotations and a number of vibrations that are obtained on the basis of a vibration frequency dependent on a period, in which an operating instruction can be executed to the vibration means (150) and (160), and the number of rotations or the number of vibrations that is input via the inputting means (182), and setting means for setting each parameter of the number of rotations and the number of vibrations in the control section on the basis of a predetermined combination selected from combinations that are got selectable by the selecting means (183).

To provide a numerical controller, a numerical control method and a numerical control program enabling to improve laser cutting speed. A numerical controller for dividing a laser cutting range into a plurality of sections and performing cutting in the respective sections with individual laser outputs includes a nonvolatile memory for storing division conditions and laser output conditions for the plurality of respective sections in association with a cutting condition identifier, and a CPU for specifying the cutting condition identifier as a command value along with an axial movement command in a cutting program, thereby sequentially applying the stored laser output conditions to the plurality of respective sections.

Method for generating a machining program of a plunge mulling machine tool, comprising the steps of: establishing a machining to be performed on a workpiece; acquiring first machining information that indicates stable cut conditions of the machine tool for the workpiece; acquiring second machining information that indicates engagement cut conditions of the machine tool during the machining on the workpiece; carrying out a determination of the rotation speeds of the machine tool during the machining on the basis of the second machining information and the first machining information; wherein the machining program is generated on the basis of the determination carried out.

To provide a machine tool and a control device for the machine tool that allows a user to select the vibration condition according to an input number of rotations and an input number of vibrations. The control device (184) for the machine tool (180) includes: inputting means (182) for inputting a relative number of rotations or a relative number of vibrations of the cutting tool (130) and a workpiece (W), selecting means (183c) for making it possible to select a combination of each parameter consisting of a number of rotations and a number of vibrations that are obtained on the basis of a vibration frequency dependent on a period, in which an operating instruction can be executed to the vibration means (150) and (160), and the number of rotations or the number of vibrations that is input via the inputting means (182), and setting means for setting each parameter of the number of rotations and the number of vibrations in the control section on the basis of a predetermined combination selected from combinations that are got selectable by the selecting means (183)

To provide a numerical controller, a numerical control method and a numerical control program enabling to improve laser cutting speed. A numerical controller for dividing a laser cutting range into a plurality of sections and performing cutting in the respective sections with individual laser outputs includes a nonvolatile memory for storing division conditions and laser output conditions for the plurality of respective sections in association with a cutting condition identifier, and a CPU for specifying the cutting condition identifier as a command value along with an axial movement command in a cutting program, thereby sequentially applying the stored laser output conditions to the plurality of respective sections.