Active control of machine tool chatter for a boring BAR: Experimental results

Sanjiv G. Tewani; Thad C. Switzer; Bruce L. Walcott; Keith E. Rouch; Ted R. Massa

doi:10.1115/DETC1993-0226

Active control of machine tool chatter for a boring BAR: Experimental results

Sanjiv G. Tewani
, Thad C. Switzer
, Bruce L. Walcott
, Keith E. Rouch
, Ted R. Massa

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

A typical boring bar is a metal cutting tool with large overhang ratio, due to which it is characterized by low dynamic stiffness. Therefore, during cutting process, it is susceptible to cutting instability, known as machine tool chatter. In this ptaper, the use of an active dynamic absorber to actively control machine tool chatter in a boring bar is studied. An active dynamic absorber is designed such that it can be easily assembled with a commercially available steel boring bar. A piezoelectric pusher is used as the actuator for the active dynamic absorber. The dynamic equations of the boring bar with active dynamic absorber are calculated from experimentally obtained frequency response functions of the system. Optimal control theory is applied to the dynamic equations to calculate state variable feedback parameters. The state variable feedback is implemented using a Digital Signal Processing (DSP) chip. Cutting tests were performed with this setup for different cutting conditions, and for different overhangs of the boring bar. Stable cutting operations were performed using the boring bar with active dynamic absorber, for length to diameter (L/D) ratio upto 9.

Original language	English
Title of host publication	14th Biennial Conference on Mechanical Vibration and Noise
Subtitle of host publication	Vibration and Control of Mechanical Systems
Pages	103-115
Number of pages	13
ISBN (Electronic)	9780791811771
DOIs	https://doi.org/10.1115/DETC1993-0226
State	Published - 1993
Event	ASME 1993 Design Technical Conferences, DETC 1993 - Albuquerque, United States Duration: Sep 19 1993 → Sep 22 1993

Publication series

Name	Proceedings of the ASME Design Engineering Technical Conference
Volume	Part F167972-9

Conference

Conference	ASME 1993 Design Technical Conferences, DETC 1993
Country/Territory	United States
City	Albuquerque
Period	9/19/93 → 9/22/93

Bibliographical note

Publisher Copyright:
© 1993 American Society of Mechanical Engineers (ASME). All rights reserved.

Funding

Acknowledgement This research has been performed with the support of Kennametal Inc. at Latrobe, Pennsylvania, and Center for Robotics and Manufacturing Systems at University of Kentucky. We are thankftil for all the help and support given by Mr. David Siddle, and Mr. John VanKirk of Keimametal, Inc..

Funders
Kennametal, Inc.

ASJC Scopus subject areas

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

Access to Document

10.1115/DETC1993-0226

Cite this

Tewani, S. G., Switzer, T. C., Walcott, B. L., Rouch, K. E., & Massa, T. R. (1993). Active control of machine tool chatter for a boring BAR: Experimental results. In 14th Biennial Conference on Mechanical Vibration and Noise: Vibration and Control of Mechanical Systems (pp. 103-115). (Proceedings of the ASME Design Engineering Technical Conference; Vol. Part F167972-9). https://doi.org/10.1115/DETC1993-0226

@inproceedings{c881a0707d4846aab9b59f348a62247f,

title = "Active control of machine tool chatter for a boring BAR: Experimental results",

abstract = "A typical boring bar is a metal cutting tool with large overhang ratio, due to which it is characterized by low dynamic stiffness. Therefore, during cutting process, it is susceptible to cutting instability, known as machine tool chatter. In this ptaper, the use of an active dynamic absorber to actively control machine tool chatter in a boring bar is studied. An active dynamic absorber is designed such that it can be easily assembled with a commercially available steel boring bar. A piezoelectric pusher is used as the actuator for the active dynamic absorber. The dynamic equations of the boring bar with active dynamic absorber are calculated from experimentally obtained frequency response functions of the system. Optimal control theory is applied to the dynamic equations to calculate state variable feedback parameters. The state variable feedback is implemented using a Digital Signal Processing (DSP) chip. Cutting tests were performed with this setup for different cutting conditions, and for different overhangs of the boring bar. Stable cutting operations were performed using the boring bar with active dynamic absorber, for length to diameter (L/D) ratio upto 9.",

author = "Tewani, \{Sanjiv G.\} and Switzer, \{Thad C.\} and Walcott, \{Bruce L.\} and Rouch, \{Keith E.\} and Massa, \{Ted R.\}",

note = "Publisher Copyright: {\textcopyright} 1993 American Society of Mechanical Engineers (ASME). All rights reserved.; ASME 1993 Design Technical Conferences, DETC 1993 ; Conference date: 19-09-1993 Through 22-09-1993",

year = "1993",

doi = "10.1115/DETC1993-0226",

language = "English",

series = "Proceedings of the ASME Design Engineering Technical Conference",

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}

Tewani, SG, Switzer, TC, Walcott, BL, Rouch, KE & Massa, TR 1993, Active control of machine tool chatter for a boring BAR: Experimental results. in 14th Biennial Conference on Mechanical Vibration and Noise: Vibration and Control of Mechanical Systems. Proceedings of the ASME Design Engineering Technical Conference, vol. Part F167972-9, pp. 103-115, ASME 1993 Design Technical Conferences, DETC 1993, Albuquerque, United States, 9/19/93. https://doi.org/10.1115/DETC1993-0226

Active control of machine tool chatter for a boring BAR: Experimental results. / Tewani, Sanjiv G.; Switzer, Thad C.; Walcott, Bruce L. et al.
14th Biennial Conference on Mechanical Vibration and Noise: Vibration and Control of Mechanical Systems. 1993. p. 103-115 (Proceedings of the ASME Design Engineering Technical Conference; Vol. Part F167972-9).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Active control of machine tool chatter for a boring BAR: Experimental results

Abstract

Publication series

Conference

Bibliographical note

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ASJC Scopus subject areas

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