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The use of deforming broaching for enhancing the efficiency of cutter chisels

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dc.contributor.author Nemyrovskyi, Ya.B.
dc.contributor.author Krivosheya, V.V.
dc.contributor.author Sardak, S.E.
dc.contributor.author Shepelenko, I.V.
dc.contributor.author Tsekhanov, Yu.A.
dc.date.accessioned 2022-11-23T08:09:21Z
dc.date.available 2022-11-23T08:09:21Z
dc.date.issued 2022-11-23
dc.identifier.citation Ya. B. Nemyrovskyi, V. V. Krivosheya, S. E. Sardak, I. V. Shepelenko, & Yu. A. Tsekhanov. (2020). The use of deforming broaching for enhancing the efficiency of cutter chisels. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 2, 51–56. uk_UA
dc.identifier.issn 2071-2227
dc.identifier.issn 2223-2362
dc.identifier.uri http://biblio.umsf.dp.ua/jspui/handle/123456789/4814
dc.description.abstract Purpose. To determine the potential of deforming broaching for the improvement of efficiency of cutter chisels in the mining industry. Methodology. The study of the application of the technological process of deforming broaching was carried out based on the experimental research into conditions of assembly of press couplings corresponding to cutting rock-destroying tools, the working surface of which is reinforced with solid-alloy inserts. Findings. Based on the conducted research, a new process of assembling the crowns of cutter chisels with the use of deforming broaching was developed. Originality. It was determined that the range of angles of inclination of generatrix of the working cone of the deforming element and the roll-treading lip of the insert, which are necessary for efficient machining and pressing in crowns of cutters, is 4–16°. It was proven that the “solid alloy-steel” press couplings for cutter chisels will have the maximum bearing capacity at total tension a/d0 ≤ 3%. It was found that it is necessary to foresee the following distribution of tensions: to perform 2 % of deformation by preliminary deforming broaching, and 1 % ‒ by pressing in an insert. Practical value. The use of deforming broaching makes it possible to increase the strength of fastening the inserts of cutter chisels by 2 times, to reduce specific consumption of the tool by 4.4 times, and to increase the average drilling rate by 4 times. uk_UA
dc.language.iso en uk_UA
dc.publisher Національний гірничий університет uk_UA
dc.relation.ispartofseries Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu;2020, № 2
dc.subject deforming broaching uk_UA
dc.subject press coupling uk_UA
dc.subject crown of cutter chisel uk_UA
dc.subject tension uk_UA
dc.subject деформуюче протягування uk_UA
dc.subject пресове з’єднання uk_UA
dc.subject вінець шарошечного долота uk_UA
dc.subject натяг uk_UA
dc.title The use of deforming broaching for enhancing the efficiency of cutter chisels uk_UA
dc.type Article uk_UA


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