Cutting process stability of a boring bar with active dynamic absorber

Sanjiv G. Tewani, Keith E. Rouch, Bruce L. Walcott

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Active vibration control has been considered in the past as a viable means of controlling machine tool chatter in the boring bar. Theoretically, it has been shown that the amplitude of vibrations of the machine tool can be substantially reduced using such an active control system. This paper looks into the cutting process stability of a boring bar equipped with an active vibration control device. An equivalent lumped mass model of the boring bar is considered. A cutting process model that considers the dynamic variation of shear and friction angle responsible for the self-excited vibration during machine tool chatter is considered. The model also considers the regeneration effect during the cutting process. Stability charts have been obtained in the form of maximum allowable width of cut as a function of cutting speed. A comparison of the stability boundaries of the boring bar with no control, with passive dynamic absorber and with active dynamic absorber is made. A substantial increase in the region of stable operation of the boring bar with active dynamic absorber is observed.

Original languageEnglish
Title of host publication13th Biennial Conference on Mechanical Vibration and Noise
Subtitle of host publicationVibration Analysis - Analytical and Computational
Number of pages9
ISBN (Electronic)9780791806289
StatePublished - 1991
EventASME 1991 Design Technical Conferences, DETC 1991 - Miami, United States
Duration: Sep 22 1991Sep 25 1991

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
VolumePart F168436-4


ConferenceASME 1991 Design Technical Conferences, DETC 1991
Country/TerritoryUnited States

Bibliographical note

Funding Information:
Acknowledgement This research has been performed with the support of the Center of Robotics and Manufacturing Systems at the University of Kentucky and Kennametal Inc. at Latrobe, Pennsylvania.

Publisher Copyright:
© 1991 American Society of Mechanical Engineers (ASME). All rights reserved.

ASJC Scopus subject areas

  • Mechanical Engineering
  • Computer Graphics and Computer-Aided Design
  • Computer Science Applications
  • Modeling and Simulation


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