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  4. Enhancement and analysis of multidimensional characteristic diagrams for correction of TCP-displacements caused by thermal tool displacement
 
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2018
Journal Article
Titel

Enhancement and analysis of multidimensional characteristic diagrams for correction of TCP-displacements caused by thermal tool displacement

Alternative
Erweiterung und Analyse mehrdimensionaler Kennfelder fĂ¼r die in die Maschinensteuerung integrierte Korrektur thermisch induzierter TCP-Verlagerungen
Abstract
In the present paper former developed characteristic diagram approaches for the correction of thermo-elastic TCP-displacements during cutting processes are extended. Input variables linked with the resulting deformations are estimated by Design of Experiments (DoE). Deformations are computed by means of FEA via the estimation of heat fluxes in the system workpiece - chip - tool - clamping device and the temperature field in tool and clamping device. Multidimensional characteristic diagrams are derived to enable real-time correction of tool paths within the machine tool control. These correction approaches are of crucial importance especially in the field of precision machining and difficult-to-cut material generating large heat amounts. With the obtained correction values the effect of the different cutting parameters on the TCP-displacement is investigated in a sensitivity analysis.
Author(s)
Putz, Matthias
Fraunhofer-Institut fĂ¼r Werkzeugmaschinen und Umformtechnik IWU
Oppermann, Christian
Fraunhofer-Institut fĂ¼r Werkzeugmaschinen und Umformtechnik IWU
Bräunig, Michael
Technische Universität Chemnitz, Professur fĂ¼r Werkzeugmaschinen und Umformtechnik
Zeitschrift
Procedia CIRP
Konferenz
Conference on High Performance Cutting (HPC) 2018
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DOI
10.1016/j.procir.2018.08.235
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Language
English
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Fraunhofer-Institut fĂ¼r Werkzeugmaschinen und Umformtechnik IWU
Tags
  • TCP-displacement

  • thermal error

  • characteristic diagramm

  • machine tool

  • sensitivity analysis

  • design of experiment

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