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Thermal condition monitoring of a motorized milling spindle

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Abstract

Growing power densities in the main spindle of machine tools caused by approaches to increase the productivity lead to deflections of the tool-center-point (TCP) and thus limit the achievable accuracy. In order to optimize the operating point of a spindle in the context of these contrary requirements, effective tools need to be developed. By modeling thermo-elastic effects using a FE approach, interactions of heat sources and sinks can be investigated deeply on the one hand and a model based correction of TCP deflections can be established on the other hand. For a practical use, short computing times as well as precise simulation results are core requirements. In the present paper, an online thermal simulation model is developed, parameterized and validated.

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Acknowledgements

The Authors would like to thank the German Research Foundation (DFG) for financial support. The presented findings result from the subprojects B03 and A05 within the CRC/Transregio 96 “Thermo-Energetic Design of Machine Tools”.

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Authors and Affiliations

  1. Laboratory for Machine Tools and Production Engineering (WZL), RWTH Aachen University, Campus-Boulevard 30, 52074, Aachen, Germany

    Christian Brecher, Stephan Neus & Alexander Steinert

  2. Institute of Mechatronic Engineering, Chair of Machine Tools Development and Adaptive Controls, Technical University Dresden, Helmholtzstr. 7a, 01069, Dresden, Germany

    Steffen Ihlenfeldt & Alexander Galant

Authors
  1. Christian Brecher
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  2. Steffen Ihlenfeldt
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  3. Stephan Neus
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  4. Alexander Steinert
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  5. Alexander Galant
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Correspondence to Stephan Neus.

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Brecher, C., Ihlenfeldt, S., Neus, S. et al. Thermal condition monitoring of a motorized milling spindle. Prod. Eng. Res. Devel. 13, 539–546 (2019). https://doi.org/10.1007/s11740-019-00905-3

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