Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Characteristics of Chatter Stability Lobe in 2-DOF Machining System

2-DOF 가공시스템의 채터로브 거동연구

  • Lee, Hyuk (Graduate school of Mechanical Design Engineering, PUKYONG NATIONAL UNIVERSITY) ;
  • Chin, Dohun (Department of Industrial Health, CATHORIC UNIVERSITY OF PUSAN) ;
  • Yoon, Moonchul (Department of Mechanical Design Engineering, PUKYONG NATIONAL UNIVERSITY)
  • 이혁 (부경대학교 대학원) ;
  • 진도훈 (부산가톨릭대학교 산업보건학과) ;
  • 윤문철 (부경대학교 기계설계공학과)
  • Received : 2019.05.05
  • Accepted : 2019.06.07
  • Published : 2019.07.31
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Abstract

A chatter lobe analysis is frequently used to look at the chatter state. Even if there is a lot of research on chatter, chatter lobe characteristics are not well defined. In this study, the chatter lobe behavior according to several variables of vibration mode is verified for further clarity. The dynamic variables of the chatter model are defined and their behaviors on chatter lobe boundary are analyzed in detail. In this sense, the chatter model with 2-DOF (2-DOF) was used to analyze chatter stability characteristics. The discussed results are satisfying and these can be used for the prediction of chatter existence in machining processes of 2-DOF systems in several revolution range. These analyses indicate a better agreement for predicting an appropriate stability lobe over a wide detailed range of critical depths of cut in machining operation. The results allow an excellent prediction of chatter according to various static and dynamic variables in machining states. The behavior of chatter dynamic variables in machining were also discussed in detail. All these results can also be applied to other machining processes by establishing a chatter model in a 2-DOF system.

Keywords

References

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