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The shape and dimensions of the cutting edges of rock tools

  • Rock Breaking
  • Published:
Soviet Mining Aims and scope

Summary

  1. 1.

    The most effective tool from the point of view of strength and power requirement is one with a trapezoidally shaped cutting edge with transition face angles of 45°.

  2. 2.

    Tools with square cutting edges require the least energy but do not meet strength requirements.

  3. 3.

    Rounding-off the cutting edges of the tool reduces specific tool wear but raises the power requirement in cutting slightly.

  4. 4.

    Increasing the width of tool blade in contact with the rock to 50 mm reduces wear intensity and the power requirement in cutting, especially if we use an interrupted cutting edge the adjacent blades of which exert mutual effects during the breaking of rocks of medium hardness.

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Authors
  1. Yu. P. Linenko
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  2. G. G. Karyuk
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Additional information

L. N. Virovets and D. M. Miflig also participated in this work.

Institute of Superhard Materials, Kiev. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 77–84, July–August, 1967.

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Linenko, Y.P., Karyuk, G.G. The shape and dimensions of the cutting edges of rock tools. Soviet Mining Science 3, 380–385 (1967). https://doi.org/10.1007/BF02497563

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  • DOI: https://doi.org/10.1007/BF02497563

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