Chatter Characteristics Analysis of a Compliant Workpiece in Straight Turning Operations

Kaibo Lu, Yuhao Wang, Peisheng Lou, Fengshou Gu, Xinyu Pang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Chatter as well as flexural deformation frequently occurring in long slender workpieces turning process, reduces the dynamic stability and geometric accuracy of the operation. This study aims to analyze the vibration characterisitcs of a compliant workpiece in straight turning so as to provide a prelude for online condition monitoring and control of chatter issues in machining of flexible workpieces. Considering the effect of the time-varying cutting positions due to tool movement, the chatter stability of the cutting system along the cutting path is constructed, and the critical stiffness expression for chatter onset prediction is deduced. After that, machining experiments were carried out to observe the vibration transition mechanism of the compliant workpiece during turning operations. Combining the theoretical analysis and the experimental measurements, the vibration characteristics of the compliant workpiece during stable and unstable cutting are compared and summarized. The present study provides an in-depth understanding of the dynamic behavior of flexible rods in turning operations.

Original languageEnglish
Title of host publicationAdvances in Asset Management and Condition Monitoring, COMADEM 2019
EditorsAndrew Ball, Len Gelman, B.K.N. Rao
PublisherSpringer, Cham
Pages1375-1383
Number of pages9
Volume166
ISBN (Electronic)9783030577452
ISBN (Print)9783030577445
DOIs
Publication statusPublished - 28 Aug 2020
Event32nd International Congress and Exhibition on Conditioning Monitoring and Diagnostic Engineering Management Conference - University of Huddersfield, Huddersfield, United Kingdom
Duration: 3 Sep 20195 Sep 2019
Conference number: 32
http://www.comadem2019.com/ (Link to Conference Website)

Publication series

NameSmart Innovation, Systems and Technologies
PublisherSpringer
Volume166
ISSN (Print)2190-3018
ISSN (Electronic)2190-3026

Conference

Conference32nd International Congress and Exhibition on Conditioning Monitoring and Diagnostic Engineering Management Conference
Abbreviated titleCOMADEM 2019
CountryUnited Kingdom
CityHuddersfield
Period3/09/195/09/19
Internet address

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