Development of Automatic Chatter Suppression System in Parallel Milling by Real-Time Spindle Speed Control with Observer-Based Chatter Monitoring

Shuntaro Yamato, Kenichi Nakanishi, Norikazu Suzuki, Yasuhiro Kakinuma

研究成果: Article査読

1 被引用数 (Scopus)

抄録

To maximize the potential for high material removal rates in simultaneous processes such as parallel milling, developing strategies for successful chatter suppression/avoidance is an important concern for manufacturers. In this study, the effectiveness of the spindle speed difference method (SDM) for chatter suppression is discussed in a parallel end-milling process where a flexible workpiece is machined by two tools rotating in opposite direction. The process model is developed, considering that the dynamic variation due to the regenerative effect occurs on a plane perpendicular to the tool axis direction. Through the process simulations and the experiments, this study provides informative discussion for comprehending the process behavior. Additionally, a real-time active chatter suppression system with adaptive SDM, where the spindle speed difference is sequentially optimized during the process according to the tracked chatter frequency, is developed by integrating a chatter monitoring system based on sensorless cutting force estimation with sliding discrete Fourier transform. The results show that the developed real-time adaptive system of spindle speed suppresses chatter vibrations more effectively than non-adaptive SDM system; hence, the integrated system can contribute self-optimizing machining systems oriented to Industry 4.0.

本文言語English
ページ(範囲)227-240
ページ数14
ジャーナルInternational Journal of Precision Engineering and Manufacturing
22
2
DOI
出版ステータスPublished - 2021 2

ASJC Scopus subject areas

  • 機械工学
  • 産業および生産工学
  • 電子工学および電気工学

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