Optimization of End Mill Geometry Parameters Based on Oblique Cutting Theory

Abstract:

An optimization method of end mill geometry parameters is presented for minimizing cutting energy. The helical end mill geometry is established at first. Then, the helical flutes are decomposed a set of infinitesimal oblique cutting edges. At every oblique cutting element, the differential cutting energy, which consists of differential shear energy and differential friction energy, is calculated using oblique cutting theory. By integrating the differential cutting energy along each cutting edge in the end mill, the cutting energy can be predicted during end milling. The effects on cutting energy of end mill geometry parameters are analyzed. Finally, the end mill geometry can be optimized in order to minimizing cutting energy.

• Periodical: Key Engineering Materials (Volume 693)
• Pages: 850-855
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.693.850
• Online since: May 2016
• Authors: Lei Wang*, Bin Lin, Yu Guo, Ji Ming Yao
• Keywords: Cutting Energy, End Mill, Oblique Cutting, Optimization

References

[1] Altintas Y., Manufacturing Automation, Cambridge University Process, London, (2000).

[2] Tlusty J., High-speed milling, J, Ann CIRP, 42(2) (1993) 733-738.

[3] Martelloti M E., An analysis of the milling process, J. Trans. ASME, 67 (1945) 233-251.

[4] Koenigsberger F., Sabberwal A.J.P., An investigation into the cutting force pulsations during milling operations. Int. J. Mach. Tool. Manu, 1 (1961) 15-33.

DOI: 10.1016/0020-7357(61)90041-5

[5] DeVor R.E., Kline W.A., Zdeblick W.J., A Mechanistic Model for the Force System in End Milling with Application to Machining Airframe Structures. Proc. of the 8th NAMRC, 1980, pp.297-303.

[6] Kline W.A., DeVor R.E., Lindberg J.R., The prediction of cutting forces in end milling with application to cornering cuts, Int. J. Mach. Tool. Manu, 22(1) (1982) 7-22.

DOI: 10.1016/0020-7357(82)90016-6

[7] Smith S., Tlusty J., An Overview of Modeling and Simulation of the Milling Process, J. Eng. Ind, 113(2) (1991) 169-175.

[8] Yang M.Y., Park H.D., The prediction of cutting force in ball end milling, Int. J. Mach. Tool. Manu, 31(1) (1991) 45-54.

[9] Yucesan G., Altintas Y., Prediction of ball end milling force, Trans. ASME, J. Eng. Ind, 118 (1996) 95-103.

[10] Lee P., Altintas Y., Prediction of ball-end milling forces from orthogonal cutting data, Int. J. Mach. Tool. Manu, 36(9) (1996) 1059-1072.

DOI: 10.1016/0890-6955(95)00081-x

[11] Engin S., Altintas Y., Mechanics and dynamics of general milling cutters, Part I: helical end mills. Int. J. Mach. Tool. Manu, 41 (2001) 2195-2212.

DOI: 10.1016/s0890-6955(01)00045-1