Method for controlling and/or monitoring a workpiece machining process

A method for controlling a workpiece machining process, the method comprising:

• bringing a tool having a working surface into contact with a surface of a workpiece to be machined,
• wherein a feed movement for a relative approach of the tool and the workpiece is carried out, wherein the tool rotates about a tool axis and/or the workpiece rotates about a workpiece axis and the feed movement is carried out while the tool and/or the workpiece are rotating;
• introducing, at least while the feed movement is performed, an auxiliary medium at least into a region between the working surface of the tool and the surface of the workpiece to be machined;
• capturing, in a time-resolved manner during the feed movement, bending moments acting transversely to the tool axis and/or transversely to the workpiece axis, forces acting transversely to the tool axis and/or transversely to the workpiece axis and/or torques occurring during the rotation of the tool about the tool axis and/or during the rotation of the workpiece about the workpiece axis;
• and
• detecting the relative approach of the tool and the workpiece to a threshold distance greater than zero by identifying that one or more captured values of the bending moments, forces, and/or torques exceed a previously defined first threshold value;
• and
• reducing an advance speed of the feed movement when the relative approach of the tool and the workpiece to the threshold distance is detected.