Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

The Characteristics of the Milling Tool Deflection According to the Variation of Helix Angle

헬릭스각의 변화에 따른 밀링공구의 변위 특성 연구

  • 맹민재 (동서울대학 기계공학부) ;
  • 정준기 (홍익대학교 기계ㆍ시스템디자인공학과)
  • Published : 2004.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

In the end milling operation the deflection of the cutter is an important factor affecting the accuracy of machining, with implications on the selection of cutting parameters and economics of the operation. Several studies were devoted to the end mill deflection and its effects, notably, providing a useful insight into the problem. Although the deflection affects adversely the accuracy, the flexibility of the cutter is beneficial in attenuating the overload in a sudden transient situation, as well as in attenuating chatter. The deflection of the end mill was studied both experimentally with strain gauge, tool dynamometer, laser measuring apparatus and on a finite element model of the cutting using ANSYS software. The deflection of machining tool with various helix angles was studied with FEM simulation and experiment. ANSYS analysis performed on the finite element model of the end mill provides deflection results which agree within 15.0% with the experimental ones.

Keywords

References

  1. Marellotti, M. E., 1941, 'An Analysis of the Milling Process,' Transactions of the ASME, Vol. 63, pp. 677-700
  2. Tlusty, J., and Macneil, P., 1975, 'Dynamics of Cutting Force in End Milling,' Annals of the CIRP, Vol. 24, No. 1, pp. 21-25
  3. Tlusty, J. and Elbestawi, M., 1979, 'Constraints in Adaptive Control with Flexible End Mills,' Annals of the CIRP, Vol. 28, No. 1, pp. 253-255
  4. Kline, W. A., Devor, R. E. and Shareef, I. A., 1982, 'The Prediction of Surface Accuracy in End Milling,' Transactions of the ASME, Vol. 104, pp. 272-278 https://doi.org/10.1115/1.3185830
  5. Kline, W. A. and Devor, R. E., 1983, 'The Effect of Runout on Cutting Geometry and Force in the Milling,' Int. J. MTDR, Vol. 23, No. 2, pp. 123-140
  6. Kops, L. and Vo, D., 1990, 'Determination of the Equivalent Diameter of End Mill based on Its Compliance,' Annals of the CIRP, Vol. 39, No. 1, pp. 93-96 https://doi.org/10.1016/S0007-8506(07)61010-5
  7. Smith, S. and Tlusty, J., 1991, 'An Overview of Modeling and Simulation of the Milling Process,' Transactions of the ASME, Vol. 113, pp. 169-175 https://doi.org/10.1115/1.2899674
  8. Devor, R. E. and Sutherland, J., 1986, 'An Improved Method for Cutting Force and Surface Error Prediction in Flexible End Milling System,' Transactions of the ASME, Vol. 108, pp. 269-279 https://doi.org/10.1115/1.3187077
  9. Kenichi, K., Mitsushige, F., Katsuhiko, A. and Tomio, S., 1994, 'Analytical Prediction of Cemented Endmill,' Transactions of the JSPE, Vol. 60, No. 6, pp. 822-826
  10. Ismail, F. and Tlusty, J., 1983, 'Special Aspects of Chatter in Milling, Transactions of the ASME, Vol. 105, pp. 24-32
  11. Lee, S. L., Maeng, M. J. and Chung, J. K., 1999, 'Tool Fracture Detection by End Mill Deflection,' Journal of the Korean Society of Machine Tool Engineers, Vol. 8, No. 2, pp. 100-107