Dynamic and Static End-milling Force Analysis According to Workpiece Geometry

가공물 형상에 따른 동적 및 정적 절삭력 성분 분석법

  • 양재용 (부경대학교 메카트로닉스공학과 대학원) ;
  • 윤문철 (부경대학교 기계자동차공학과) ;
  • 김병탁 (부경대학교 기계자동차공학과)
  • Published : 2012.08.31

Abstract

There are many dynamic properties in measured end-milling force. So, it is difficult to predict the real static property of end-milling force. Also the behavior of end-milling force is very complex to predict with the measured one. To extract the static property from measured force, it must be filtered and its problem is closely related to a de-noising one. Also this paper presents alternative de-noising method of end-milling force using wavelet filter bank, based on the wavelet transform and its inverse one. In this paper, by comparing the measured force and its wavelet filtered one, the fundamental end-milling force property after wavelet transform is well reviewed and analyzed. This result of wavelet filtering with filter bank shows the static force of end-milling which has severe dynamic properties occurring in entry and exit state of edge emersion into the workpiece.

Keywords

References

  1. M. C. Yoon, Y. G. Kim, "Cutting dynamic force modelling in end-milling operation", J. of MPT, Vol. 155, pp. 1383-1389, 2004.
  2. Yoon, M. C. and Chin D. H., "Cutting force monitoring in the end-milling operation for chatter detection", Journal of Eng. Manuf., Vol. 12, pp. 455-466, 2005.
  3. J. Y. Yang and M. C. Yoon, "Machined surface generation using wavelet filtering", J. of MST, Vol. 25, No. 3, pp. 639-645, 2011.
  4. J. Y. Yang and M. K. Ha, "Wheel Loading Diagnosis and De-noising by Wavelet Transform", KSMPE, Vol. 1, No. 1, pp. 29-37, 2002.
  5. J. S. Jeong, H. G. Cho and M. C. Yoon, "Crater Wear Volume Calculation and Analysis", KSMTE, Vol. 18, No. 3, pp. 248-254, 2009.
  6. Yuan, C., Peng, Z. and Yan, X., "Surface Characterization using wavelet theory and confocal laser scanning microscopy", Trans. of the ASME, Vol. 127, pp. 394-404, 2005.
  7. Chui, C. K., "An introduction to wavelets, Wavelet analysis and its applications", Academic Press Inc., Boston, 1992.
  8. Jaideva, C. G. and Andrew K. C., "Fundamentals of Wavelets", 1999.
  9. Newland, D. E., "An introduction to random vibration, spectral & wavelet analysis", 3rd ed. Longman, 1991.
  10. Gilbert, S. and Truong N., "Wavelet and Filter Banks", Wellesley Cambridge Press, 1996.
  11. J. D. Kim, M. C. Yoon and H. D. Cho, "An Analysis on the tooth passing frequency using end-milling force", J. of KSMPE, Vol. 10, No. 4, pp. 1-7, 2011.