M. Rahman et al., A STUDY OF THE VIBRATIONAL DYNAMICS OF AN ENDRILL CLAMPED BY SIDE-LOCKING, Journal of engineering for industry, 115(4), 1993, pp. 438-443
An endrill is clamped by a side-locking device. The shape of a hole ob
tained by such a drill is found to be of a distorted oval shape. Fouri
er analysts of the process reveals that the out-of-roundness of the ho
le is due to the harmonic variation of the centrifugal force developed
on the drill-bit. The chattering ranges of the spindle speed are also
shown in a stability chart representing the frequency response of the
system.