Preliminary Study on the Effect of Mass-Induced Damping on Machining Delicate Workpiece Geometry

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Study of predicting chatter has been around for many years. These studies are crucial for our understanding of machining processes and to enhance efficiency in manufacturing. This paper presents a new mechanism affecting the stability of machining process called mass induced damping. This effect is simulated numerically with tested values of initial parameters taken for impact tests of a thin-walled workpiece. Results from the simulation shows minor increment in allowable depth of cut by numerically calculated using stability lobe theory. This effect will open a new understanding how certain mechanical factors would affect the value of damping of a system.

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83-89

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Y. Altintas, E. Budak, Analytical prediction of stability lobes in Milling, CIRP Annals- Manufacturing technology: (1995).

DOI: 10.1016/s0007-8506(07)62342-7

Google Scholar

[2] U. Bravo, O. Altuzarra, D. L. López, J.A. Sánchez, Campa, F. J, Stability limits of milling considering the flexibility of workpiece and the machine, International Journal of machine tools and manufacture, 45(2005)1669-1680.

DOI: 10.1016/j.ijmachtools.2005.03.004

Google Scholar

[3] O.B. Adetoro, W.M. Sim , P.H. Wen, An improved prediction of stability lobes using nonlinear thin wall dynamics, Journal of Material Processing Technology 210(2010) 969-979.

DOI: 10.1016/j.jmatprotec.2010.02.009

Google Scholar

[4] O.B. Adetoro, P.H. Wen, W.M. Sim, R. Vepa, Numerical and Experimental Investigation for Stability Lobes Prediction in Thin Wall Machining, Engineering Letters, (2009).

Google Scholar

[5] S. -J. Kim, H.U. Lee, D. -W. Cho, Prediction of chatter in NC machining based on a dynamic cutting force model for ball end milling, International Journal of Machine Tools & Manufacture, 47(2007)1827-1838.

DOI: 10.1016/j.ijmachtools.2007.04.005

Google Scholar

[6] M. Zatarain, I. Bediaga, J. Muñoa, T. Insperger, Analysis of directional factors in milling: importance of multi-frequency calculation and of the inclusion of the effect of the helix angle, International Journal of Advance Manufacturing Technology, 47(2010).

DOI: 10.1007/s00170-009-2230-5

Google Scholar

[7] A.J. Tang, Z.Q. Liu, Effect of helix angle and normal rake angle on stability in end milling, Advanced Materials Research (2009)69-70.

DOI: 10.4028/www.scientific.net/amr.69-70.394

Google Scholar

[8] A.J. Tang, Z.Q. Liu, , Three-dimensional stability lobe and maximum material removal rate in end milling of thin-walled plate, International Journal of Advanced Manufacturing Technology, 43(2009) 33–39.

DOI: 10.1007/s00170-008-1695-y

Google Scholar

[9] S. P Nhleko, Free Vibration Stability of SDoF Systems Undergoing Variable mass-induced Damping, IMAC-XXVII, (2009).

Google Scholar