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Actual contact area and frictional coefficient of the drill guides and the hole in deep drilling

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Abstract

The actual contact area and frictional coefficient of the drill guides and the hole produced in deep drilling are investigated as a function of the inclination of the microprojections in the guides. A model of the contact interaction of these surfaces is outlined and experimentally confirmed. A program for simulating the surfaces of the guide and the hole is described. The program permits the prediction of the actual contact area and frictional coefficients in different conditions.

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References

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Authors and Affiliations

  1. OAO NLMK, Lipetsk, Russia

    S. A. Pashovkin

Authors
  1. S. A. Pashovkin
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Original Russian Text © S.A. Pashovkin, 2009, published in Vestnik Mashinostroeniya, 2009, No. 4, pp. 67–71.

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Pashovkin, S.A. Actual contact area and frictional coefficient of the drill guides and the hole in deep drilling. Russ. Engin. Res. 29, 383–387 (2009). https://doi.org/10.3103/S1068798X09040121

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  • DOI: https://doi.org/10.3103/S1068798X09040121

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