Machine tools, machine tool machining methods, and machining programs for machine tools

摘要

To make it possible to suppress chatter vibration and deterioration of visibility in each unit of processing in turning.SOLUTION: A processing program includes: a first process program code for moving a lathe tool relatively to a work-piece in a first initial cutting direction orthogonal to a work-piece rotation axis with a posture of the lathe tool as a first initial posture in a first processing process of turning, and a first cutting change program code for changing a cutting direction of the lathe tool from the first initial cutting direction to a first target cutting direction of optional cutting directions in the first processing process. The first cutting change program code includes a first target angle formed by the first initial cutting direction and the first target cutting direction as a parameter. A control circuit of the machine tool controls a moving mechanism so that the lathe tool relatively moves with respect to the work-piece in the first target cutting direction in execution of the first processing process.SELECTED DRAWING: Figure 24