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A New Load Cell Dynamometer for Measuring the Dynamic Cutting Coefficients

  • R. Radharamanan
Chapter

Summary

A new two component load cell dynamometer [1] has been designed in order to measure the dynamic cutting force components in an orthogonal turning process more accurately without any cross influences. The new load cell dynamometer and a digital Fourier analyser along with the refined experimental setup have been used to measure accurately the dynamic cutting coefficients. From the experimental results, the effects of excitation frequency and cutting speed on the components of dynamic cutting have been analysed.

A programmable mathematical model has been derived to evaluate chatter depth, phase angle and chatter frequency from the stability criterion and the graphical solution developed in the machine tool laboratory of the Katholieke Uhiversiteit Leuven,using the measured dynamic cutting coefficients and the stiffness of the model structure.

Useful conclusions are drawn from the measurements and the analysis.

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References

  1. 1.
    R. RAfflARAMANAN (1977) The Measurement of the Dynamic Cutting Coefficients and the Analysis of Chatter Behaviour in Turning, Doctoral Thesis, K.U. Leuven.Google Scholar
  2. 2.
    M.K. DAS and S.A. TOBIAS (1967) The Relation bet ween Static and Dynamic Cutting of Metals, Int.J.Mech.Tool Pes.Res., 7, 63–89.CrossRefGoogle Scholar
  3. 3.
    J. PETERS and P. VANHERCK (1969) Machine Tool Stability Tests and Incremental Stiffness, Annals of CIRP, 17, 225–32.Google Scholar
  4. 4.
    H. VAN BRUSSEL (1971) Dynamische Analyse van het Verspaningsproces, Doctoral Diss., K.U. Leuven.Google Scholar
  5. 5.
    M.BUSTOS (1972) Estude du Coefficient Dynamique du Coupe, M.E. Thesis, K.U. Leuven.Google Scholar
  6. 6.
    H.S.LUTHRA (1974) Influence of the Dynamic and Machining Parameters on the Dynamic Characteristics of a Turning Process and Prediction of Chatter, Doctoral Thesis, K.U. Leuven.Google Scholar
  7. 7.
    R.RAMASWAMI, H.VAN BRUSSEL and P.VANHERCK (1975) A Study on the Dynamic Machining of Free Machining Steel, Proc. 16th Int. MTDR Conference.Google Scholar
  8. 8.
    H.VAN BRUSSEL and P.VANHERCK (1970) A New Method for the Determination of the Dynamic Cutting Coefficients, Proc. 11th Int. MTDR Conf., Manchester.Google Scholar
  9. 9.
    J. PETERS and P. VANHERCK (1963) Ein Kriterium für die dynamische Stabilität von Werkzeugma-chinen, Industrie Anzeiger II, 19, 24–34.Google Scholar
  10. 10.
    F.DANEK, M.POLACEK, L.SPACEK and J.TLUSTY (1962) Selbsterregete Schwingungen an Werkzeugmachinen, VEB Verlag Technik, Berlin.Google Scholar
  11. 11.
    R.L.KEGG (1965) Cutting Dynamics in Mechine Tool Chatter, Trans. ASME, 461–70 (November).Google Scholar
  12. 12.
    G.WERNTZE (1971) Bestimmung dynamischer Schnittkraft Kjeffxzienten, Industrie Anzeiger, 771–72.Google Scholar
  13. 13.
    T.HOSHI (1971) Cutting Dynamics Associated with Vibration Normal to the Cut Surface, Paper to Ma group, CIRP.Google Scholar
  14. 14.
    J.PETERS, P.VANHERCK and H.VAN BRUSSEL (1972) The Measurement of Dynamic Cutting Coefficient, Annals of CIRP.Google Scholar
  15. 15.
    H.J.J.KALS (1972) Dynamic Stability in Cutting, Doctoral Thesis, Techn. Univ., Eindhoven.Google Scholar
  16. 16.
    M.POLACEK (1969) Die Schnittkraft beim drehen mit schavenkendem span quarschnitt, Report to Ma group, CIRP, Vüoso.Google Scholar

Copyright information

© Department of Mechanical Engineering, University of Manchester Institute of Science and Technology 1979

Authors and Affiliations

  • R. Radharamanan
    • 1
  1. 1.Departamentode Engenharia Mecânica, Pos-Graduacão em Engenharia de ProducãoUniversidade Federal de Santa MariaBrasil

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