Improving Stability of Slender End Mills Against Chatter

[+] Author and Article Information
F. Ismail, A. Bastami

Dept. of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, Canada, N2L 3G1

J. Eng. Ind 108(4), 264-268 (Nov 01, 1986) (5 pages) doi:10.1115/1.3187076 History: Received June 16, 1986; Online July 30, 2009


The strongest mechanisms that contribute to machining chatter are regeneration and mode coupling. Special designs of milling cutters have evolved with the aim to increase stability against chatter by disturbing the regeneration mechanism. However, in the case of slender end mills, the mode coupling remains most active. In this work, a new approach is presented where a design change of the cutter is suggested to weaken the mode coupling mechanism. Time domain simulation of the development of chatter showed that using this approach significant increase in stability could be achieved. Cutting tests of aluminum with the modified end mills confirmed simulation results.

Copyright © 1986 by ASME
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