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.
|Title of host publication||13th Biennial Conference on Mechanical Vibration and Noise|
|Subtitle of host publication||Vibration Analysis - Analytical and Computational|
|Number of pages||9|
|State||Published - 1991|
|Event||ASME 1991 Design Technical Conferences, DETC 1991 - Miami, United States|
Duration: Sep 22 1991 → Sep 25 1991
|Name||Proceedings of the ASME Design Engineering Technical Conference|
|Conference||ASME 1991 Design Technical Conferences, DETC 1991|
|Period||9/22/91 → 9/25/91|
Bibliographical noteFunding 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.
© 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