Method and device for fine machining cylindrical workpiece surfaces

A method for fine machining a cylindrical workpiece face of a workpiece blank by means of a fine machining tool, said method comprising the following steps:

• generating a relative rotation between the fine machining tool and the workpiece blank about a machining axis which is concentric with the cylindrical workpiece face of the workpiece blank, wherein the fine machining tool is a one-part tool being at least mandrel-shaped and having a conical portion and a shank portion;
• generating a relative feed rate between the fine machining tool and the workpiece blank along the machining axis;
• detecting an actual value of a process variable which is a function of a relative force between the fine machining tool and the workpiece blank;
• continuously controlling the process variable, which is a function of a relative torque between the fine machining tool and the workpiece blank, by changing the relative feed rate in such a manner that the more the actual value of the process variable deviates from a nominal value of the process variable, the more the relative feed rate changes;
• prior to generating the relative feed rate, moving the workpiece blank and the fine machining tool relative to one another until the conical portion of the one-part tool contacts an annular edge of the workpiece blank;
• and
• detecting an axial relative position between the fine machining tool and the workpiece blank.