Mining of Mineral Deposits

ISSN 2415-3443 (Online)

ISSN 2415-3435 (Print)

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Modeling the process of mineral rocks cutting with a tool made of polycrystallinе superhard materials

V. Krasnyk1

1SE “Science and Technical Center “Coalinnovation”, Kyiv, Ukraine

Min. miner. depos. 2017, 11(3):84-92

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      Purpose.To analyze the process of rocks cutting by a tool made of polycrystallinе superhard materials (PSM).

      Methods. Mathematical modeling of rock destruction process.

      Findings. A model of deformation and fracturing of rock mass under the influence of a tool made of PSM is developed, which makes it possible to calculate the pressure in the zone of the tool contact with the rock and determine the change of the tool surface shape during wear.

      Originality.The developed model of the PSM interaction with the rock mass takes into account both tool wear and displacement due to the elastic deformation of the rock, formation of the pre-destruction zone and brittle fracture of the rock.

      Practical implications. It is shown that the shape of the worn out tool surface essentially depends on the ratio of the parameters describing elastic deformation, formation of the pre-destruction zone and brittle fracture of the rock, which can be used to determine the relative role of these processes in cutting various types of rocks.

      Keywords: polycrystallinе superhard material, rock destruction, mathematical modeling, tool wear, brittle fracture


Artsimovich, G.V. (1985). Mekhano-fizicheskie osnovy sozdaniya porodorazrushayushchego instrumenta. Novosibirsk: Nauka.

Cherepanov, G.P. (1987). Mekhanika razrusheniya gornykh porod. Moskva: Nedra.

Erarslan, N., & Ghamgosar, M. (2016). An Innovative and Effective Approach to Hard Rock Cutting. Rock Mechanics and Rock Engineering: From the Past to the Future, (1).

Glowka, D.A. (1989). Use of Single-Cutter Data in the Analysis of PDC Bit Designs: Part 1 – Development of a PDC Cutting Force Model. Journal of Petroleum Technology, 41(08), 797-849.

Joodi, B., Sarmadivaleh, M., Rasouli, V., & Nabipour, A. (2012). Simulation of the Cutting Action of a Single PDC Cutter Using DEM. Petroleum and Mineral Resources, (81), 143-150.

Krasnyk, V. (2016). Designing Cutting Tools of Mining Machines for Coal Auger Mining. Mining of Mineral Deposits, 10(3), 13-19.

Li, H., & Du, E. (2016). Simulation of Rock Fragmentation Induced by a Tunnel Boring Machine Disk Cutter. Advances in Mechanical Engineering, 8(6), 1-11.

Molchanov, A.A., & Pozharskii, D.A. (2012). Galin’s Problem for a Spatial Elastic Wedge. Mechanics of Solids, 47(1), 34-39.

Novoseltseva, M.B., & Pashkov, E.N. (2015). Prospects for Further Rock Cutting Mechanisms Development. Applied Mechanics and Materials, (756), 47-52.

Suprnun, M.V., Zakorab, A.P., Bogdanov, R.K., Il’nitskaya, G.D., & Zaytseva, I.N. (2013). Naukovі Pratsі DonNTU. Serіya “Gіrnicho-geologіchna”, 2(19), 253-256.

Tiryaki, B., & Dikmen, A.C. (2005). Effects of Rock Properties on Specific Cutting Energy in Linear Cutting of Sandstones by Picks. Rock Mechanics and Rock Engineering, 39(2), 89-120.

Zhupanska, O.I. (2007). On the Analytical Approach to Galin’s Stick-Slip Problem. A Survey. Journal of Elasticity, 90(3), 315-333.

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