Patent ID: 8676369

Claim:
A method for monitoring a production process with regard to quality, comprising the steps of: a) breaking down the production process into a sequence of individual steps, defined by a sequence of control commands for a production program for carrying out the production process on a machine tool; b) generating a signal template per individual step of the production process from the control commands for the individual steps, each signal template corresponding to a theoretical signal curve for a parameter which is measurable upon executing the production process, wherein a tolerance of each signal template is defined by an upper limit and lower limit enveloping the theoretical signal curve and wherein the upper limit and lower limit along with the signal template are generated from the control commands of the individual steps; c) measurement of a signal curve for the parameter per individual step during execution of the production process; and d) comparison of a measured signal curve with a respective signal template, wherein a qualitatively poor production process is determined if the measured signal curve deviates from the respective signal template by more than the tolerance.