THERMAL SCIENCE

International Scientific Journal

Aleksandar Živković

,

Milan Zeljković

,

Cvijetin Mlađenović

,

Slobodan Tabaković

,

Zoran Milojević

,

Miodrag Hadžistević

A STUDY OF THERMAL BEHAVIOR OF THE MACHINE TOOL SPINDLE

ABSTRACT
The performances of high-speed machine tools depend not only on the speed, power, torque, dynamic and static stiffness, but also on the thermal behavior of the spindle. These parameters directly affect the productivity and quality of machining operations. This paper presents a 3-D finite element thermal model, which was based on the thermo mechanical bearing model and the numerical model of the spindle. Based on thermo mechanical analysis of bearings with angular contact, generated heat and thermal contact resistance are determined for each position of the ball. To provide the most accurate analysis possible in determining thermal contact resistance , bearings are divided into several zones based on the geometry of their cross-section. The aforementioned constraints have been applied to the 3-D FEM model which allowed for establishing temperature field distribution, and spindle thermal balance. In order to prove the efficacy of the proposed model, experimental measurements of spindle and bearing temperatures were done by using thermocouples and thermal imager.
KEYWORDS
Machine tool, Spindle unit, Rolling bearing, Thermal model, temperature field, FE (finite element)
PAPER SUBMITTED: 2018-01-29
PAPER REVISED: 2018-03-19
PAPER ACCEPTED: 2018-03-24
PUBLISHED ONLINE: 2018-04-28
DOI REFERENCE: https://doi.org/10.2298/TSCI180129118Z
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 3, PAGES [2117 - 2130]
REFERENCES
  1. Bossmanns, B., et al., Thermal model for high speed motorized spindles, International Journal of Machine Tools and Manufacture, 39 (1999), pp. 1345-1366.
  2. Bossmanns, B., et al., A power flow model for high speed motorized spindles - Heat generation characterization, Journal of Manufacturing Science and Engineering, Transactions of the ASME, 123 (2001), pp. 494-505.
  3. Than, V.-T., et al., Nonlinear thermal effects on high-speed spindle bearings subjected to preload, Tribology International, 96 (2016), pp. 361-372.
  4. Jȩdrzejewski, J., et al., Hybrid model of high speed machining centre headstock, CIRP Annals - Manufacturing Technology, 53 (2004), pp. 285-288.
  5. Jȩdrzejewski, J., et al., High-speed precise machine tools spindle units improving, Journal of Materials Processing Technology, 162-163 (2005), pp. 615-621.
  6. Li, H., et al., Integrated dynamic thermo-mechanical modeling of high speed spindles, part 1: Model development, Journal of Manufacturing Science and Engineering, Transactions of the ASME, 126 (2004), pp. 148-158.
  7. Mitrović, R.M., et al., Effects of operation temperature on thermal expansion and main parameters of radial ball bearings, Thermal Science, 19 (2015), pp. 1835-1844.
  8. Grujičić, R.N., et al., The analysis of impact of intensity of contact load and angular shaft speed on the heat generation within radial ball bearing, Thermal Science, (2016), pp. 133-133.
  9. Mišković, Ž.Z., et al., Analysis of grease contamination influence on the internal radial clearance of ball bearings by thermographic inspection, Thermal Science, 20 (2016), pp. 255-265.
  10. Ma, C., et al., Thermal characteristics analysis and experimental study on the high-speed spindle system, The International Journal of Advanced Manufacturing Technology, 79 (2015), pp.469-489.
  11. Ma, C., et al., Simulation and experimental study on the thermally induced deformations of high-speed spindle system, Applied Thermal Engineering, 86 (2015), pp. 251-268.
  12. Zivkovic, A., Computer and experimental analysis of behavior ball bearings for special applications, Ph. D. thesis, University of Novi Sad, Faculty of technical science, Novi Sad, 2013.
  13. Zivkovic, A., et al., Mathematical modeling and experimental testing of high-speed spindle behavior, The International Journal of Advanced Manufacturing Technology, 77 (2015), pp. 1071-1086.
  14. Harris, T.A., Michael, N. K., Rolling bearing analysis: Advanced Concepts of Bearing Technology, Taylor & Francis Group, 2007.
  15. Harris, T.A., Michael, N. K., Rolling bearing analysis: Essential Concepts of Bearing Technology, Taylor & Francis Group, 2007.
  16. Nakajima, K., Thermal contact resistance between balls and rings of a bearing under axial, radial, and combined loads, Journal of thermophysics and heat transfer, 9 (1995),pp. 88-95.
  17. Incropera, F.P., et al., Fundamentals of heat and mass transfer, John Wiley & Sons, 2011.
  18. Yovanovich, M.M., Thermal constriction resistance between contacting metallic paraboloids: Application to instrument bearings, AIAA Progress in Astronautics and Aeronautics: Heat Transfer and Spacecraft Control, 24 (1971), pp. 337-358.
  19. Zhang, J., et al., A method for thermal performance modeling and simulation of machine tools, The International Journal of Advanced Manufacturing Technology, 68 (2013), pp. 1517-1527.
  20. Takabi, J., et al., Experimental testing and thermal analysis of ball bearings, Tribology International, 60 (2013), pp. 93-103.
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A study of thermal behavior of the machine tool spindle

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence