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Prediction of the effect of heat generation in ballscrew on the accuracy of CNC milling machine

Dehnavi, H ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1109/UKSim.2012.47
  3. Publisher: 2012
  4. Abstract:
  5. In high speed machining, friction between the moving parts, generates heat. One of the major causes of thermal errors in linear axes is the heat generated in ball screw during operation at high speed. Thermal errors affect the accuracy of the linear axes and can cause a deviation from the nominal machining circular motion. The subject of this paper is to study the effects of feed velocity and ball screw Preload on the accuracy of circular motion. The temperature rise in the ball screw is measured by a laser thermometer. The errors in the linear and circular motions are measured by laser interferometer and ball bar. Training a neural network by the test results, thermal errors in all parts of a ball screw are predicted and compared with other test results
  6. Keywords:
  7. Artificial neural network ; Ballbar Test ; Ball-bar ; Circular Deviations ; Circular motion ; CNC milling machine ; Feed velocity ; High speed machining ; Laser thermometers ; Moving parts ; Pre loads ; Temperature rise ; Thermal error ; Errors ; Laser interferometry ; Milling machines ; Neural networks ; Screws ; Ball screws
  8. Source: Proceedings - 2012 14th International Conference on Modelling and Simulation, UKSim 2012, 28 March 2012 through 30 March 2012 ; March , 2012 , Pages 278-282 ; 9780769546827 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6205461