Abstract
The machining of concrete with diamond cutting discs is nowadays often done with all-purpose tools and unadjusted machine parameters due to unknown material properties. The inhomogeneous structure of concrete ideally requires continuous process monitoring and real time adjustment of machine parameters. A joined research project of the Institute of Production Engineering and Machine Tools (IFW) and the Institute of Mineralogy (IM) is aimed at enabling process monitoring by means of using acoustic emission (AE) and airborne sound generated by the grinding tools. This paper presents the applied methods and first results. AE and airborne sound measurements show a correlation between the signal intensity and the aggregates present in the concrete. It is shown here that spectral analysis of measured signals can give information about the process and the workpiece structure being cut.
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The investigations presented in this paper are kindly supported by the German Research Foundation (DFG) within the project “Method for characterization of the machinability of brittle-hard compound material”.
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Denkena, B., Boehnke, D., Konopatzki, B. et al. Sonic analysis in cut-off grinding of concrete. Prod. Eng. Res. Devel. 2, 209–218 (2008). https://doi.org/10.1007/s11740-008-0093-5
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DOI: https://doi.org/10.1007/s11740-008-0093-5