Demonstrator 7: Adaptive Solution for Chatter Free Machining

Fidia and RWTH companies defined the system architecture and requirements for the dynamic calibrator hardware as well as the AD/DA interfaces, base units and I/O cards. The metrological units, the software for the stability chart calculation and their interface with the CNC from Fidia were also defined during these first months of the project. Two dynamic calibrators have been built and tested in different machines. These calibration units have the potential to enable an increase in machining performance in industrial applications, since they allow an automatic measurement of the dynamic behavior of the machine tool and come along with easy-to-handle measurement and calculation software. The exemplary application of the HSC calibrator for the calibration of a milling process was successful. The predicted stability diagram is in good agreement with the results of cutting tests. Furthermore, it was proven and demonstrated that the HPC calibrator can be used for an efficient characterization of the position dependent dynamic behavior of machine tools. A patent about the HPC calibrator is under study.