Comparative Evaluation of the Performance of Drill Bits with a Diamond-Containing Matrix and Inserts Made of Diamond-Containing Composites

Vynohradova, Olena; Zakora, A. P.; Шульженко, А. А.; Gargin, V. G.; Соколов, А. Н.; Efrosinin, D. V.; Zakora, I. A.

doi:10.3103/s1063457622010099

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…Apart from the rock mechanical properties [6], especially when transitioning between two distinct layers with different mechanical properties [7], the cutting performance and wear resistance of diamond-reinforced composites depends on the properties of a matrix primarily determined by its elemental composition [8], proportion of diamond grains added [9,10], dimensions of the reinforcement [11], the strength and shape of diamond grits [12], and the additives that have effect on the composite microstructure [13]. In particular, Fe-Cu-Ni-Sn matrices are used for the diamond composites [14,15], due to their high cutting characteristics and tribological properties useful for both soft soil and hard rocks in stationary and quarry conditions alike [16].…”

Section: Introductionmentioning

confidence: 99%

Combined Effect of CrB<sub>2</sub> Micropowder and VN Nanopowder on the Strength and Wear Re-sistance of Fe‒Cu–Ni–Sn Matrix Diamond Composites

Ratov¹,

Мечник²,

Rucki³

et al. 2023

Adv. Sci. Technol. Res. J.

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The paper presents research results on the enhancement of diamond composites designed for tools application for mining industry, hard rocks cutting, able to withstand harsh conditions under heavy dynamical loads. In the present study, both CrB 2 micropowder and VN nanopowder additives were used in proportions up to 5 wt.% and 6 wt.%, respectively, together with the basic matrix composition of 51 wt.% Fe, 32 wt.% Cu, 9 wt.% Ni, and 8 wt.% Sn. Addition of both components, CrB 2 and VN, appeared to be advantageous in proportion of 2 wt.% and 4 wt.%, respectively. This composition exhibited the highest relative density of 0.9968, better than that without additives. Similarly, the highest values of compressive strength R cm and flexural strength R bm were reached for the composite with the same percentage of CrB 2 and VN. Compared to the composite with no addition of CrB 2 and VN, R cm improved by almost 70%, while R bm by 81%. Additionally, the abovementioned additives enhanced the ability of the matrix to prevent the diamond reinforcement from being torn out of the composite, which is very important under harsh working conditions of the cutting tools. The presence of CrB 2 micropowder and VN nanopowder promoted densification of the matrix and adhesion between the diamond grits and the Fe-Cu-Ni-Sn matrix.

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Section: Introductionmentioning

confidence: 99%

Combined Effect of CrB<sub>2</sub> Micropowder and VN Nanopowder on the Strength and Wear Re-sistance of Fe‒Cu–Ni–Sn Matrix Diamond Composites

Ratov¹,

Мечник²,

Rucki³

et al. 2023

Adv. Sci. Technol. Res. J.

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“…These materials are required to combine high physical, mechanical and performance characteristics, such as hardness, elastic modulus, fracture toughness, thermal conductivity, plasticity, high diamond retention capacity, friction coefficient, thermal and wear resistance [2][3][4]. It is well-established knowledge that the wear resistance of diamond composites depends on the elemental composition and properties of a matrix, either a metal or carbide one [5][6][7], the strength and shape of diamond grains [8,9], their concentration [10], as well as the abrasiveness and productivity of rock processing [11]. The wear mechanism of the diamond composite cutting tools during rock cutting has been studied in detail in [12].…”

Section: Introductionmentioning

confidence: 99%

Properties of Cutting Tool Composite Material Diamond–(Fe–Ni–Cu–Sn) Reinforced with Nano-VN

Mamalis¹,

Мечник

Morozow

et al. 2022

Machines

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The study is devoted to structure and mechanical properties of a diamond composite used for manufacturing of cutting tools applied in a wide range of technological fields. The sample tools were fabricated by cold-pressing technology followed by hot-pressing in vacuum of the 51Fe–32Cu–9Ni–8Sn matrix mixture with diamond bits, both in absence and presence of nano-VN additives. It was demonstrated that without VN addition, the diamond–matrix interface contained voids and discontinuities. Nanodispersed VN added to the matrix resulted in the formation of a more fine-grained structure consisting of solid solutions composed of iron, copper, nickel, vanadium and tin in different ratios and the formation of a tight diamond–matrix zone with no visible voids, discontinuities and other defects. Optimal concentrations of VN in the CDM matrix were found achieving the maximum values of nanohardness H = 7.8 GPa, elastic modulus E = 213 GPa, resistance to elastic deformation expressed by ratio H/E = 0.0366, plastic deformation resistance H3/E2 = 10.46 MPa, ultimate flexural strength Rbm = 1110 MPa, and compressive strength Rcm = 1410 MPa. As-prepared Fe–Cu–Ni–Sn–VN composites with enhanced physical and mechanical properties are suitable for cutting tools of increased durability and improved performance.

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Development of a Combined Spud Bit for Drilling Technological Wells in Kazakhstan

Ratov,

Fedorov,

Khomenko

et al. 2024

SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings

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The development of efficient drilling tools tailored to the unique geological conditions of Kazakhstan's drilling sites is paramount for optimizing well construction operations. This study focuses on the design, fabrication, and evaluation of a combined spud bit specifically engineered for drilling technological wells in Kazakhstan. The combined spud bit integrates both polycrystalline diamond compact (PDC) and carbide cutters within a single robust structure to enhance drilling performance across a diverse range of rock formations. It is an annular housing with stepped weapons, and a pilot is attached to the lower end of the housing, at the end of which alternating weapons are placed: a carbide cutter-PDC cutter. Mixed stepped blades equipped with weapons are welded onto the side surface of the annular pilot with their transverse direction towards the face. The main design solution is to raise the blades of carbide cutters above the edges of the blades of PDC cutters, i.e. the former are located closer to the face than the latter. This makes it possible to work out initially carbide cutters when the face is destroyed. In addition, the latter are located further from the axis of rotation of the tool and will have greater wear resistance. As drilling progresses, the height of the carbide cutter edges decreases and, finally, their height becomes equal to the height of the PDC cutter edges. As a result, the speed of deepening the well to the design depth increases sharply. The findings of this study contribute valuable insights into the development of advanced drilling technologies tailored to Kazakhstan's geological challenges, with implications for improved well construction practices and resource extraction efficiency

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Comparative Evaluation of the Performance of Drill Bits with a Diamond-Containing Matrix and Inserts Made of Diamond-Containing Composites

Cited by 3 publications

References 2 publications

Combined Effect of CrB<sub>2</sub> Micropowder and VN Nanopowder on the Strength and Wear Re-sistance of Fe‒Cu–Ni–Sn Matrix Diamond Composites

Combined Effect of CrB<sub>2</sub> Micropowder and VN Nanopowder on the Strength and Wear Re-sistance of Fe‒Cu–Ni–Sn Matrix Diamond Composites

Properties of Cutting Tool Composite Material Diamond–(Fe–Ni–Cu–Sn) Reinforced with Nano-VN

Development of a Combined Spud Bit for Drilling Technological Wells in Kazakhstan

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