Improving a turning process using piezoelectric actuators

Peter P. Radecki, Walter A. Kruse, Aaron J. Welsh, Erik A. Moro, Gyuhae Park, Matthew T. Bement

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

2 Scopus citations

Abstract

An adaptive vibration control technique for improving surface finish is explored. In some cases, additional processing to improve surface finish quality after machining, such as grinding or polishing, is either not feasible or is not cost-effective. The focus of this research is on the development of an improved turning processes through the use of active vibration damping. Demonstration of the tool holder shows reduced relative tool-workpiece vibration and improved surface finish. The toolholder employs a high bandwidth piezoelectric actuator and collocated piezoelectric displacement sensor, with an adaptive positive position feedback control algorithm for vibration control and chatter reduction. The performance of this method is evaluated by comparing the surface finishes obtained with active vibration control versus baseline uncontrolled cuts. Surface finish roughness was measured using profilometry gages. Considerable improvement in surface finish and reduction in chatter amplitude are observed analyzed for applications in modern day machining.

Original languageEnglish
Title of host publicationIMAC-XXVII
Subtitle of host publicationConference and Exposition on Structural Dynamics - Model Verification and Validation
StatePublished - 2009
Externally publishedYes
Event27th Conference and Exposition on Structural Dynamics 2009, IMAC XXVII - Orlando, FL, United States
Duration: Feb 9 2009Feb 12 2009

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Conference

Conference27th Conference and Exposition on Structural Dynamics 2009, IMAC XXVII
Country/TerritoryUnited States
CityOrlando, FL
Period02/9/0902/12/09

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