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Influence of external heat sources on volumetric thermal errors of precision machine tools
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Weng, Lingtao, Gao, Weiguo, Lv, Zhanshan, Zhang, Dawei, Liu, Teng, Wang, Yu, Qi, Xiangyang and Tian, Yanling (2018) Influence of external heat sources on volumetric thermal errors of precision machine tools. The International Journal of Advanced Manufacturing Technology, 99 (1-4). pp. 475-495. doi:10.1007/s00170-018-2462-3 ISSN 0268-3768.
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Official URL: http://dx.doi.org/10.1007/s00170-018-2462-3
Abstract
Volumetric accuracy is susceptible to thermal gradient caused by internal heat source (IHS) and external heat source (EHS). A temperature-structure multi-step calculation method is presented to investigate the influences of EHSs on volumetric thermal errors of precision machine tools. The temperature and structure of the machine tool are simulated first, and then, the volumetric thermal errors are calculated using multi-body theory method. Simulations are completed to study the effects of different EHSs on a machine tool, and series of validating experiments are carried out to verify the modeling method. The test results in specific position and working condition revealed that EHSs contribute 53, 21, and 68% of thermal deviations in X, Y, and Z directions individually. It is illustrated that the EHS is an important factor affecting the volumetric accuracy of precision machine tools. The methods provided in this paper are valuable for machine tool designers to evaluate the EHS effects on volumetric thermal errors during designing process; furthermore, some insulating measures are suggested to improve the accuracy and accuracy stability of precision machine tools by reducing the EHS influences.
Item Type: | Journal Article | ||||||||||||||||||
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Subjects: | Q Science > QD Chemistry T Technology > TJ Mechanical engineering and machinery |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Machine-tools -- Testing, Volumetric analysis | ||||||||||||||||||
Journal or Publication Title: | The International Journal of Advanced Manufacturing Technology | ||||||||||||||||||
Publisher: | Springer-Verlag | ||||||||||||||||||
ISSN: | 0268-3768 | ||||||||||||||||||
Official Date: | October 2018 | ||||||||||||||||||
Dates: |
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Volume: | 99 | ||||||||||||||||||
Number: | 1-4 | ||||||||||||||||||
Page Range: | pp. 475-495 | ||||||||||||||||||
DOI: | 10.1007/s00170-018-2462-3 | ||||||||||||||||||
Status: | Peer Reviewed | ||||||||||||||||||
Publication Status: | Published | ||||||||||||||||||
Reuse Statement (publisher, data, author rights): | This is a post-peer-review, pre-copyedit version of an article published in The International Journal of Advanced Manufacturing Technology. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00170-018-2462-3 | ||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||
Date of first compliant deposit: | 24 September 2018 | ||||||||||||||||||
Date of first compliant Open Access: | 6 August 2019 | ||||||||||||||||||
RIOXX Funder/Project Grant: |
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