A New Cutting Force Model for Micro-Milling and Determination of Optimal Cutting Parameters

Abstract:

A new cutting force model of micro-milling was developed based on calculating the instantaneously projected area of cutting in this study. According to the rotation trajectory of cutting edge, the instantaneous cutting area projected to xy-plane was first divided into several portions and determined with rectangular integral. After the cutting coefficients were experimentally investigated, the cutting force of micro-milling with different cutting conditions can be determined. Because the developed cutting force was function of cutting parameters, such as spindle speed, feed rate, depth of cut, with taking the cutter deflection into account it was further used to the determine of optimal cutting parameters for obtaining better cutting efficiency and machining accuracy. To verify the proposed cutting force model and the way to determine the optimal cutting parameters, micro-milling experiments were conducted. The results have shown the feasibility of the proposed model and method.

• Periodical: Advanced Materials Research (Volumes 83-86)
• Pages: 680-687
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.83-86.680
• Online since: December 2009
• Authors: Shih Ming Wang, Zou Sung Chiang, Da Fun Chen, Yao Yang Tsai
• Keywords: Depth of Cut, Instantaneous Projection Area, Micro-Milling, Optimal Cutting Parameter

References

[1] J. Tlusty, P. Maneil, Dynamics of cutting force in end milling, 1975, Annals of CIRP 24 (1) 21-25.

[2] Kuang-Hua Fuh and Ren-Ming Hwang, A Predicted milling force model for high-speed end milling operation, 1997, Int. I. Mmch. Took Ma~fmct. Vol. 37, No. 7, pp.969-979.

DOI: 10.1016/s0890-6955(96)00083-1

[3] Byung Guk Jun、Richard E. DeVor and Shiv G. Kapoor, , Investigation of the dynamics of micro-end milling Part I: Model Development,. 1999, Department of Mechanical and Industrial Engineering.

[4] Michael P. Vogler, Richard E. DeVor, Shiv G. Kapoor, , Microstructure-level force prediction model for micro-milling of multi-phase materials, 2003, trans of the ASME Vol. 125 202-209.

DOI: 10.1115/1.1556402

[5] M. Rahman, A. Senthil Kumar, J.R.S. Prakash, , Micro milling of pure copper, 2001, Journal of Materials Processing Technology 116 39-43.

DOI: 10.1016/s0924-0136(01)00848-2

[6] M.T. Zaman, A. Senthil Kumar and M. Rahman, S. Sreeram , A three-dimensional analytical cutting force model for micro end milling operation, 2005, International Journal of Machine Tools & Manufacture 46 353-336.

DOI: 10.1016/j.ijmachtools.2005.05.021