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Thermal error modeling of spindle based on the principal component analysis considering temperature-changing process

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Abstract

Thermal error is one of the most significant factors that influence the machining accuracy. Thermal error compensation is an easy and economical way to reduce the thermal error. However, the effectiveness of compensation is highly dependent on the thermal error model. In this paper, the thermal characteristics of the spindle of a horizontal machining center are investigated and tested. The measured temperature changes during a period of time are reconstructed based on PCA and used as the new input variables rather than discrete temperatures collected at some certain moments for axial spindle thermal error modeling. By comparing with the thermal error model built on original temperature data, it finds out that the accuracy of spindle thermal error modeling and prediction are improve by adopting PCA for data processing.

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Funding

It is gratefully acknowledged that the work has been supported the National Science and Technology Major Project of China (2014ZX04014021) and the National Natural Science Foundation of China (51705402).

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Authors and Affiliations

  1. State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an, 710049, Shaanxi, China

    Yang Li, Wenming Wei, Dongxu Su, Wanhua Zhao & Jun Zhang

  2. Key Lab. of NC Machine Tools and Integrated Manufacturing Equipment of the Ministry of Education & Key Lab of Manufacturing Equipment of Shaanxi Province, Xi’an University of Technology, Xi’an, 710048, Shaanxi, China

    Wenwu Wu

Authors
  1. Yang Li
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  2. Wenming Wei
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  3. Dongxu Su
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  4. Wanhua Zhao
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  5. Jun Zhang
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  6. Wenwu Wu
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Corresponding author

Correspondence to Wanhua Zhao.

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Li, Y., Wei, W., Su, D. et al. Thermal error modeling of spindle based on the principal component analysis considering temperature-changing process. Int J Adv Manuf Technol 99, 1341–1349 (2018). https://doi.org/10.1007/s00170-018-2482-z

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  • DOI: https://doi.org/10.1007/s00170-018-2482-z

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