Abstract
This paper suggests a new mathematical method to calculate volumetric machine tool motion errors using rigid body kinematics. Different internal and external heat sources lead to a nonhomogeneous transient temperature distribution within the machine structure. This results in transient tool-center-point deviations during measurement time, directly affecting the measurement uncertainty. Therefore investigations of the volumetric thermo-elastic machine tool behavior are often limited as they imply a stable thermal machine state. In order to still allow a volumetric measurement, an approach is presented which enhances the common evaluation method (using rigid body models) by an interpolation technique.








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Acknowledgments
The Authors want to thank the DFG (German Research Foundation) for financial support. The represented findings result from the subproject B06 Property model based compensation of the special research field SFB/Transregio 96 Thermo-energetic design of machine tools.
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Brecher, C., Fey, M. & Wennemer, M. Volumetric measurement of the transient thermo-elastic machine tool behavior. Prod. Eng. Res. Devel. 10, 345–350 (2016). https://doi.org/10.1007/s11740-016-0666-7
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DOI: https://doi.org/10.1007/s11740-016-0666-7