Enhancement of in-process identification for stable spindle rotation against chatter vibration with a time-domain milling simulator

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

Abstract

In order to improve cutting accuracy and efficiency in milling, chatter stability analysis should be performed to find a stable cutting condition. However, the stability prediction has a difficulty to ensure high reliability, because modal parameters of a tool have to be identified accurately, which change with the spindle rotation. In this study, a novel approach for identification of stable spindle rotation against chatter is proposed by decreasing spindle rotation during chatter and capturing drastic shifts of chatter frequency with disturbance observer in the spindle control system. Furthermore, identification error is discussed with a time-domain milling simulator, and a theoretical compensation equation for the error is derived.

Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015
PublisherJapan Society of Mechanical Engineers
Publication statusPublished - 2015 Oct 18
Event8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015 - Kyoto, Japan
Duration: 2015 Oct 182015 Oct 22

Other

Other8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015
CountryJapan
CityKyoto
Period15/10/1815/10/22

Keywords

  • Chatter
  • Disturbance observer
  • Milling
  • Process monitoring
  • Time-domain simulation

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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