Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Chatter Monitoring of Milling Process using Spindle Displacement Signal

주축 변위 신호를 이용한 밀링가공의 채터 감시

  • 장훈근 (서울산업대학교 나노생산기술연구소) ;
  • 김일해 ((주) 캠시스) ;
  • 장동영 (서울산업대학교 산업정보시스템공학부)
  • Published : 2007.12.15
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Abstract

To improve productivity of a metal cutting process, it is required to monitor machining stability in real time. Since cutting environment is harsh against sensing conditions due to vibration, chip, and cutting fluid, etc., it is necessary to develop a robust and reliable sensing system for the practical application. In this work, a chatter monitoring system was developed and its effectiveness was proved. Spindle displacement caused by cutting was selected as a main monitoring parameter. A cylindrical capacitive displacement sensor was adopted. Chatter frequencies were identified through modal analysis. To quantify chatter vibrations, chatter correlation coefficient was introduced. The identification of the monitoring system showed a good agreement with the result of experiment.

Keywords

References

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