System for Real Time Process Monitoring and Adaptive Control during CNC Deep Hole Drilling

  • Y. Kavaratzis
  • J. D. Maiden


The inherent low strength of small diameter twist drills for deep hole drilling, in conjunction with the reduced coolant penetration to the cutting zone restricts the possibility of unmanned operation. The system described monitors the cutting forces on-line and controls the feed rate, spindle speed and depth of penetration accordingly, in order to ensure safety of the tool and workpiece. Other functions are tool life monitoring, data acquisition and display and an alarm diagnostics facility.


Spindle Speed Twist Drill Surface Speed Tool Breakage Deep Hole Drill 
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  1. 1.
    Yiannis Kavaratzis, John D. Maiden, “Method for Stabilisation and Control of the Deep Hole Drilling Process using Twist Drills”, Advances in Manufacturing Technology III, Proceedings of the Fourth National Conference on Production Research, Sheffield City Polytechnic, September 1988Google Scholar
  2. 2.
    Y. Kavaratzis “Deep Hole Drilling using Twist Drills: Aspects of the Process, Real Time Monitoring and Adaptive Control”, Ph.D Thesis, University of Aston in Birmingham, U.K, 1989Google Scholar
  3. 3.
    Y. Kavaratzis “A Data Files Handling System for Turning Tools”, M.Sc Dissertation, UMIST, 1986Google Scholar

Copyright information

© Kogan Page Ltd. 1989

Authors and Affiliations

  • Y. Kavaratzis
    • 1
  • J. D. Maiden
    • 1
  1. 1.Department of Mechanical and Production EngineeringUniversity of Aston in BirminghamBiminghamUK

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