Chatter Vibration in Drilling

[+] Author and Article Information
S. Ema

Department of Technology Education, Gifu University, 1-1, Yanagido, Gifu-shi 501-11, Japan

H. Fujii, E. Marui

Department of Mechanical Engineering, Gifu University

J. Eng. Ind 110(4), 309-314 (Nov 01, 1988) (6 pages) doi:10.1115/1.3187887 History: Received September 01, 1986; Online July 30, 2009


Chatter vibration of long drills has been investigated using several drills with different overhang lengths and special drills with different pieces of additional mass. The frequency, amplitude, initiation boundary, and unstable range of chatter vibration were measured at various cutting parameters. The experimental results showed that the vibration is a regenerative chatter and its frequency is equal to the bending natural frequency of the drill when the drill point is supported in a machined hole. Based upon the experimental results, the stability of chatter vibration was discussed. It was clarified that unstable ranges appear only when the chatter frequency in one workpiece rotation is an odd number.

Copyright © 1988 by ASME
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