A method of machining an elongate workpiece extending along a longitudinal axis and shaped to be supported rotationally instably about the longitudinal axis includes sensing a rotation of the workpiece about the longitudinal axis, thereby yielding a sensing result; and machining the workpiece at the machining station at least partly in dependence of the sensing result.

A method of machining an elongate workpiece extending along a longitudinal axis and shaped to be supported rotationally instably about the longitudinal axis includes sensing a rotation of the workpiece about the longitudinal axis, thereby yielding a sensing result; and machining the workpiece at the machining station at least partly in dependence of the sensing result.

A numerical value control device, a numerical value control system, a control method, and a recording medium, with which a primary shaft can be retracted to an appropriate position when executing magazine rotation correction. In a state in which a primary shaft is stopped at a point M4 on a tool exchange path 52, a CPU determines whether there is a rotation deviation in the magazine in order to restore the position of the primary shaft in a machining region. If it is determined that there is a rotation deviation, the CPU detects a Z axis of the primary shaft, and determines whether the detected position of the Z axis is at a Z axis ATC origin point. If the detected position is not at the Z axis ATC origin point, there is a possibility that the primary shaft is positioned within a magazine rotation region.

A method and device for controlling the feed rate of a saw blade which is provided with teeth and rotates about a center point relative to a workpiece during a machining process. During a rotation of the saw blade about the center point, the feed rate is selected differently during a machining process effected by teeth of different sectors of the saw blade, wherein the feed rate is selected to be lower during a machining process effected by teeth of sectors having larger radial spacing of the teeth from the center point than during a machining process effected by teeth of sectors having smaller radial spacing of the teeth from the center point. In this way, the operation of the saw blade can be optimized and the service life can be increased.

A method and device for controlling the feed rate of a saw blade which is provided with teeth and rotates about a center point relative to a workpiece during a machining process. During a rotation of the saw blade about the center point, the feed rate is selected differently during a machining process effected by teeth of different sectors of the saw blade, wherein the feed rate is selected to be lower during a machining process effected by teeth of sectors having larger radial spacing of the teeth from the center point than during a machining process effected by teeth of sectors having smaller radial spacing of the teeth from the center point. In this way, the operation of the saw blade can be optimized and the service life can be increased.