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Dynamic Model in Ball End Milling of Inclined Surface  

Kim Seung-Yoon (기술신용보증기금 기술평가센터)
Kim Byung-Hee (강원대학교 기계 메카트로닉스공학부)
Chu Chong-Nam (서울대학교 기계항공공학부)
Lee Young-Soo (서울대학교 기계항공공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.23, no.3, 2006 , pp. 39-46 More about this Journal
Abstract
In this work a dynamic cutting force model in ball end milling of inclined surface is introduced. To represent the complex cutting geometry in ball end milling of inclined surface, workpiece is modeled with Z-map method and cutting edges are divided into finite cutting edge elements. As tool rotates and vibrates, a finite cutting edge element makes two triangular sub-patches. Using the number of nodes in workpiece which are in the interior of sub-patches, instant average uncut chip thickness is derived. Instant dynamic cutting forces are computed with the chip thickness and cutting coefficients. The deformation of cutting tool induced by cutting farces is also computed. With iterative computation of these procedures, a dynamic cutting force model is generated. The model is verified with several experiments.
Keywords
Ball end mill; Dynamic cutting force; Cutting stability;
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  • Reference
1 Engin, S., Altintas, Y., 'Mechanics and Dynamics of General Milling Cutters. Part II: Inserted Cutters,' International Journal of Machine Tools & Manufacture, Vol. 41, pp. 2213-2231, 2001   DOI   ScienceOn
2 Kim, G. M., Cho, P. J., Kim, B. H. and Chu, C. N., 'Cutting Force Prediction in the Ball-end Milling Process of Various Cutting Area Using Z-map,' Journal of the KSPE, Vol. 14, No.3, pp. 57-65, 1997
3 Tlusty, J. 'Handbook of High-speed Machining Technology,' Chapman & Hall, pp. 66-80, 1985
4 Tobias, S. A., 'Machine Tool Vibration,' Wiley, 1965
5 Gygak, P. E., Matthias, E., 'Dynamics of Single-Tooth Milling,' Annals of the CIRP, Vol. 28, pp. 65 - 70, 1979
6 Engin, S., Altintas, Y., 'Mechanics and Dynamics of General Milling Cutters. Part I: Helical End Mills,' International Journal of Machine Tools & Manufacture, Vol. 41, pp. 2195-2212, 2001   DOI   ScienceOn
7 Tlusty, J., 'Dynamics of High-Speed Milling,' Journal of Engineering for Industry, Vol. 108, pp. 59 - 67, 1986   DOI
8 Elbestawi, M., Ismail, F., Du, R. and Ullagaddi, B. C. 'Modeling Machining Dynamics Including Damping in the Tool-workpiece Interface,' Journal of Engineering for Industry, Vol. 116, pp. 435-439, 1994   DOI   ScienceOn