A computer-implemented method for calculating process parameters, being laser cutting parameters, which are machine- and material-specifically optimized for laser cutting a workpiece, being a sheet metal, with specific material properties by means of a laser machine with specific machine properties, comprising the method steps of:
- Determining material and/or machine properties for which the process parameters should be optimized;
- Determining preconfigured initial process parameters;
- Re-defining parameter domain for a re-optimization algorithm based on the determined preferences;
- Executing the re-optimization algorithm until a target objective function is optimized for calculating material-specific process parameters by accessing a storage with a statistical model, wherein execution of the re-optimization algorithm comprises:
- Controlling execution of test processes with the determined preconfigured initial process parameters;
- Evaluating the test processes by using a measurement-based algorithm or a preference-based algorithm for determining preferences for the test processes.