Abstract
Calculations were made by the finite element method of the stressed and strained condition and strength of promising designs of rock-breaking cutter cemented carbide inserts. Recommendations are presented for increasing the strength of these inserts for the purpose of breaking up tougher rocks. In particular the optimum angles of sharpening providing high strength and sufficient cutting capacity of the inserts were selected.
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Literature Cited
S. P. Timoshenko and J. Gud'er, The Theory of Elasticity [in Russian], Nauka, Moscow (1975).
Yu. B. Gnuchii, Yu. G. Khrapov, Yu. A. Kostyunin, et al., “The stressed and strained condition and strength of the cemented carbide inserts of new types of rock-breaking cutters. Report 1”, Probl. Prochn., No. 12, 53–56 (1989).
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The Institute of Problems of Strength, Academy of Sciences of the Ukrainian SSR, Kiev. Central Scientific-Research, Planning, and Design Institute for Entry Driving Machines and Units for the Coal and Mining Industry and Underground Construction, Moscow. Translated from Problemy Prochnosti, No. 12, pp. 56–60, December, 1989.
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Gnuchii, Y.B., Khrapov, Y.G., Kostyunin, Y.A. et al. Stressed and strained condition and strength of the cemented carbide inserts of new types of rock-breaking cutters. Report 2. Strength Mater 21, 1682–1688 (1989). https://doi.org/10.1007/BF01533410
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DOI: https://doi.org/10.1007/BF01533410