Éléments de machines, 2e édition revue et augmentée by Gilbert Drouin, Michel Gou, Pierre Thiry, Robert Vinet,

By Gilbert Drouin, Michel Gou, Pierre Thiry, Robert Vinet, Henri Yelle, Youssef Youssef A.

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Acknowledgement The presented work is part of the research project DYNAPRO which is funded by "Stiftung Deutsche Industrieforschung". It was done in cooperation with Studer Mikrosa GmbH. The Studer Mikrosa GmbH is manufacturer of centerless external cylindrical grinding machine tools. Fraunhofer Institute for Production Systems and Design Technology is partner of the EU-funded FP6 Innovative Production Machines and Systems (I'PROMS) Network of Excellence. References [1] [2] [3] [4] Fig. 7. Data transformation from XML to SQL.

Le Tecchio 80, Naples, Italy a Abstract This paper reports on the activities of a joint research project work carried out by two Laboratories at the Warsaw University of Technology, Poland, and the University ofNaples Federico II, Italy. The joint research work comprised the following main activities: (a) generation, detection, and storage of cutting force sensor signals obtained during sensor-based monitoring of machining processes with variable cutting conditions generating different chip forms, and (b) cutting force signal (CFS) characterization and feature extraction through advanced processing methodologies, aimed at comparing chip form monitoring results achieved on the basis of innovative signal analysis and processing.

Fig. 7 and 8 show exemplarily the chronological development of position depending variance and mean value of feed drive current signals. The traversing direction is from software limit switch plus to minus. The monitored axis is the X 1-axis (cp. Fig. 4) of a KRONOS L. The trends in the characteristic values are easy to see. More power is needed to traverse the feed axis and the variance is rising. The machine is still working and no maintenance activities were necessary until now. This example shows the sensitiveness of the characteristic values.

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