Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지
DOI QR코드

DOI QR Code

Characteristics of Rotational Vibration of Cutting Edge in Elliptical Vibration Cutting by Modulation of Excitation Frequency

타원궤적 절삭기의 가진주파수에 따른 절삭 날 회전 진동 특성

  • 노병국 (한성대학교 기계시스템공학과) ;
  • 김기대 (대구가톨릭대학교 기계자동차공학부)
  • Received : 2011.01.17
  • Accepted : 2011.02.09
  • Published : 2011.03.20
Download PDF
⟨ Previous Next ⟩

Abstract

The direction of the cutting tool plays a critical role in elliptical vibration cutting(EVC) where the cutting tool cuts workpiece in a trochoidal motion. In this study, EVC cutting device was developed using two parallel piezoelectric materials and it was observed that the rotation direction of the tool reverses as the EVC device undergoes resonance at which either flexural(cutting direction) or longitudinal( thrust direction) mode shapes occurs. To analytically explain reversal of the rotation direction, kinematic motion analysis of the tool was modified to incorporate amplification of the vibration amplitude and phase introduced by resonance. It successfully demonstrated, through Matlab simulation, reversal of the rotation direction of the cutting tool as the excitation frequency increases beyond resonance frequencies at which either flexural or longitudinal vibration occurs.

Keywords

References

  1. Shamoto, E., Moriwaki, T., 1994, Study on Elliptical Vibration Cutting, Annals of the CIRP, Vol. 43, No. 1, pp. 35-38. https://doi.org/10.1016/S0007-8506(07)62158-1
  2. Moriwaki, T., Shamoto, E., 1995, Ultrasonic Elliptical Vibration Cutting, Annals of the CIRP, Vol. 44, No. 1, pp. 31-34. https://doi.org/10.1016/S0007-8506(07)62269-0
  3. Ma, C., Shamoto, E., Moriwaki, T. and Wang, L., 2004, Study of Machining Accuracy in Ultrasonic Elliptical Vibration Cutting, International Journal of Machine Tools and Manufacture, Vol. 44, No. 12, pp. 1305-1310. https://doi.org/10.1016/j.ijmachtools.2004.04.014
  4. Cerniway, M. A., 2001, Elliptical Diamond Milling: Kinematics, Force, and Tool Wear, M.S. thesis, North Carolina State University.
  5. Negishi, N., 2003, Elliptical Vibration Assisted Machining with Single Crystal Diamond Tools, M.S. thesis, North Carolina State University.
  6. Brocato, B. C., 2005, Micromachining using Elliptical Vibration Assisted Machining(EVAM), M.S. thesis, North Carolina State University.
  7. Kim, G. D. and Loh, B. G., 2007, Characteristics of Chip Formation in Micro V-grooving Using Elliptical Vibration Cutting, Journal of Micromechanics and Microengineering, Vol. 17, No. 8, pp. 1458-1466. https://doi.org/10.1088/0960-1317/17/8/007
  8. Kim, G. D. and Loh, B. G., 2008, Characteristics of Elliptical Vibration Cutting in Micro V-grooving with Variations of Elliptical Cutting Locus and Excitation Frequency, Journal of Micromechanics and Microengineering, Vol. 18, No. 2, pp. 1-12.(Doi:10.1088/0960-1317/18/2/025002.)
  9. Lee, K. B., Lim, Y. H. and Lee K. C., 1994, A Study on the Cutting and Vibration Characteristics of Ultrasonic Vibration Cutting, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 4, No. 2, pp. 147-154.