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Study of chatter stability in boring process using operating deflection shape

Mohammadi, Z ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1115/IMECE2010-38632
  3. Abstract:
  4. Chatter is a limiting factor in machining systems with adverse effects for workpiece surface, tool and machine life and material removal rate. Proper modelling of this phenomenon requires that the dynamic characteristics of the machining system is known. It is common to obtain the dynamic of the system by modal tests in stationary condition. However, the vibration characteristics of a machine change between its operating and resting mode. The goal of this work is to study vibrations in boring using the vibrational characteristic in operational conditions using the operating deflection shape method. In this paper, vibration characteristics of the in the boring bar is obtained by both modal analysis and operating deflection shape methods and the results are compared. The results show that differences exist between the two conditions that can be small or large in different machining conditions
  5. Keywords:
  6. Boring process ; Chatter vibration ; Modal analysis ; Operating deflection shape ; Chatter vibrations ; Dynamic characteristics ; Material removal rate ; Operating deflection shapes ; Operational conditions ; Stationary conditions ; Vibration characteristics ; Mechanical engineering ; Modal analysis ; Vibration analysis ; Boring
  7. Source: ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), 12 November 2010 through 18 November 2010 ; Volume 3, Issue PARTS A AND B , 2010 , Pages 947-953 ; 9780791844274 (ISBN)
  8. URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1615986