Cutting Force Modelling in End-milling Considering Runout

런아웃을 고려한 엔드밀링의 절삭력 모델링

  • 조희근 (부경대학교 기계자동차공학과) ;
  • 김종도 (부경대학교 기계자동차공학과) ;
  • 윤문철 (부경대학교 기계자동차공학과)
  • Received : 2011.03.14
  • Accepted : 2011.05.20
  • Published : 2011.06.15

Abstract

In this paper, a new end-milling force modelling technique was suggested by considering runout, and its result was compared with real measured force. The specific cutting force is the multiplication of cutting force coefficient and uncut chip thickness. This parameter was used for experimental modelling and prediction of theoretical force. These coefficients, which can be obtained by fitting measured average forces in several conditions, were used for the formulation of theoretical force. The mechanism of end-milling force with runout was developed in this research and its result was verified by comparing the fluctuating theoretical force and its measured one. The fluctuation of force was incurred by a geometric shape of workpiece and its runout in holding. The result of suggested force considering runout shows a good consistency with measured one. So this modelling method can be used effectively for a prediction of end-milling force with runout effect.

Keywords

References

  1. Yun, W. S., and Cho, D. W., 2001, "Accurate 3-D Cutting Force Prediction Using Cutting Condition Independent Coefficients in End milling," Int. J. of MTM, Vol. 41, No. 4, pp. 463-478.
  2. Ko J. H., Yun W. S., Cho D. W. and Ehmann K. F., 2002, "Development of a Virtual Machining System, Part 1: Approximation of Size Effect for Cutting Force Prediction," Int. J. of MTM, Vol. 42, No. 15, pp. 1595-1605.
  3. Lee S. S. and Kim H. S., 1995, "Development of Mechanistic Model for Cutting Force Prediction Considering Cutting Tool States in Face Milling," KSPE, Vol. 12, No. 11, pp. 63-73.
  4. Yoon M. C. and Kim Y. G., 2004, "Cutting Dynamic Force Modelling of End-milling Operation," J. of MPT, Vol. 155-156, No. 11, pp. 1383-1389.
  5. Lee Y. M., Yang S. H., Jang S. I., Baek S. K., Kim S. I. and Lee D. S., 2002, "Effects of Cutter Runout on Cutting Forces in Up-end Milling of Inconel 718," KSMTE, Vol. 11, No. 5, pp. 45-52.
  6. Yoon M. C. and Chin D. H., 2005, "Cutting Force Monitoring in the End-milling Operation for Chatter Detection," Journal of Eng. Manufacture, Vol. 219, No. 6, pp. 455-466. https://doi.org/10.1243/095440505X32292
  7. Jeong J. S., Chin D. H. and Yoon M. C., 2006, "Endmilling Force Estimation by Fractal Interpolation," J. of KSMPE, Vol. 5, No. 1, pp. 7-12.
  8. Xiao S. J., Jiang X. Q., Blunt L. and Scott P. J., 2001, "Comparison Study of the Biorthogonal Spline Wavelet Filtering for Areal Rough Surfaces," Int. J. of MTM, Vol. 41, No. 14, pp. 2103-2111.
  9. Cho H. G., Chin D. H. and Yoon M. C., 2009, "Dynamic Filtering of End-milling Force using Wavelet Filter Bank," KSMTE, Vol. 18, No. 4, pp. 381-387.
  10. Kalpakjian S., 2001, Manufacturing Engineering Technology, Prentice Hall, Singapore.