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Volume 42 Issue 2
Feb.  2016
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Journal of Beijing University of Aeronautics and Astronautics  > 2016  >  42(2): 406-412.
LI Xiaodong, NING Tao, CHEN Zhitonget al. 5-axis tool path smoothing to improve machine tool motion[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(2): 406-412. doi: 10.13700/j.bh.1001-5965.2015.0138(in Chinese)
Citation: LI Xiaodong, NING Tao, CHEN Zhitonget al. 5-axis tool path smoothing to improve machine tool motion[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(2): 406-412. doi: 10.13700/j.bh.1001-5965.2015.0138(in Chinese)
shu

5-axis tool path smoothing to improve machine tool motion

doi: 10.13700/j.bh.1001-5965.2015.0138

  • School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 13 Mar 2015
  • Publish Date: 20 Feb 2016
    Abstract
  • An optimization model of tool path smoothing in 5-axis CNC machining is built to improve the machine tool acceleration condition in the tool path corner transition motion in linear interpolation. Considering the difference of the five axis acceleration abilities, the ratio of one axis' maximal acceleration in corner transition motion and its allowed maximal acceleration is used to evaluate its acceleration condition, and the root-mean-square value of the five axis acceleration ratios is used to evaluate the machine tool acceleration condition, decreasing which can increase the stability of machine tool motion. The shortest lines method is used to build an admissible domain for tool axis tilt and yaw angles at each cutter contact point in the initial tool path in order to make the tool path respect the cusp height and no gouging constraints after smoothing. An example is given to demonstrate the feasibility of this method in improving the machine tool acceleration condition and increasing the stability of machine tool motion by smoothing the tool path.

     

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