Method for controlling a device system, which comprises a tool device and motorized advancing apparatus

A method for controlling a device system, wherein the device system comprises a tool device and a motorized advancing apparatus during the machining of a workpiece composed of a first material and a second material different from the first material, the method comprising the steps of:

• machining the workpiece by the device system initially in a first operating mode with first machining parameters that are stored for the first material;
• measuring a first machining progress of the tool device as a quotient of a path difference and a time difference and storing the first machining progress as a reference value after the start of the machining of the workpiece in the first operating mode;
• and
• measuring regularly and comparing with a first threshold value, which is a percentage of the reference value, a current machining progress of the tool device during machining of the workpiece in the first operating mode;
• wherein the workpiece is machined by the device system in the first operating mode when the current machining progress is within the first threshold value.