Experimental and statistical analysis of the wear of diamond impregnated tools

Malevich, Nadja; Müller, Christine; Dreier, Julia; Kansteiner, Michael; Biermann, Dirk; Ferreira, Manuel; Tillmann, Wolfgang

doi:10.1016/j.wear.2020.203574

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…The approach considers the tribological effects on the metallic surface caused by the debris suspended in the water, as known as slurry. Malevich et al [13] performed an experimental and statistical analysis of the wear on such tools, by predicting the lifetime of single diamonds. The statistical model was used to extrapolate experimental results and forecast the tool performance considering its topography.…”

Section: Introductionmentioning

confidence: 99%

Geometric-kinematic model for reinforced concrete core drilling

Marra

Fabbro

Kuffa

et al. 2023

Int J Adv Manuf Technol

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Since diamond-impregnated tools have a big share on tools for construction, the development of more efficient ones is necessary in the near future. The drilling speed performance is one of the concerns during the development of new diamond-impregnated segments in concrete core drilling. However, observations only based on experiments can be very costly, considering a quite demanding amount of material and workforce. One of the solutions to overcome these issues is the development of a geometric-kinematic model (containing a kinematic process model, material model, and drilling force model) to simulate the tangential and normal forces of diamond-impregnated segments in core drilling process. Such model is regularly used in the literature for the simulation of a bonded-abrasives process. The main purpose of the geometric-kinematic model is to generate simulations for the concrete core drilling for the tool performance estimation. This allows an evaluation of the geometric characteristics’ (diamond morphology, orientation, size, and positioning) impact of diamond-impregnated segments and of drilling parameters on the drilling force. The geometric-kinematic model will use detailed segment descriptions with stochastic and deterministic variables. The drilling simulation delivers a consistent drilling forces prediction in Utliberg concrete and ASTM A615 steel at the frequently used core drilling feed window. Besides, the model shows the competence to evaluate the impact of a diamond layer characteristics (diamond size and number of rows), allowing the comparison of distinct diamond arrangements designs between each other.

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Section: Introductionmentioning

confidence: 99%

Geometric-kinematic model for reinforced concrete core drilling

Marra

Fabbro

Kuffa

et al. 2023

Int J Adv Manuf Technol

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“…In MMCs, diamond segments usually are attached to the cutting and grinding tools, e.g. drill bits, saw blades, or wire saws [4]. It is important to note that in mining and rock technology, a single diamond particle of the cutting tool composite is not performing a cutting operation, but is rather acting as a sliding indenter causing confined crushing [5].…”

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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“…Одно из главных достоинств алмазного инструмента -постоянство служебных характеристик: производительности, скорости резания. Это достигается благодаря эффекту самозатачивания [3][4][5]. Он заключается в циклическом обновлении рабочего слоя в процессе износа при эксплуатации.…”

Section: Introductionunclassified

Mechanical properties and wear resistance of Fe–Ni–Cu-based metal matrix composites reinforced with hollow corundum microspheres

Bychkova

Manakova

Akhmetov

et al. 2022

Izv. VUZ. Poroshk. Met.

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This paper focuses on the development of composite materials based on the Fe–Ni–Cu alloy with hollow corundum microspheres (HCM). The composites were produced by means of powder metallurgy: by mixing initial metallic powders in various types of mixers followed by hot pressing. Compact samples of Fe–Ni–Cu + HCM composites featured high relative density and microstructure homogeneity. The introduction of HCM leads to a decrease in strength to 30 % (from 1125 MPa to 800 MPa at a HCM concentration of 15 vol.%). However, resulting composite materials retained high plasticity. It was established by the micromechanical modeling method that such composites have stress concentration regions not at the interface between HCM and the matrix, but on the inner surface of microspheres. On the contrary, the adjacent matrix volume around HCM features stress relaxation and «unloaded» regions formed. HCM introduction into the matrix based on the Fe–Ni–Cu alloy increases wear resulting from friction on M300 concrete by 50–170 % with a grain size of 70–100 μm and by 160–325 % with a grain size of 100–140 μm. During friction, HCMs act as a reservoir for debris (concrete particles), so the matrix surface remains free of wear products and directly contacts the material processed. The heavy wear of composites with HCM makes them promising for use as a binder in diamond tools designed for the dry cutting of concrete and reinforced concrete.

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Experimental and statistical analysis of the wear of diamond impregnated tools

Cited by 5 publications

References 10 publications

Geometric-kinematic model for reinforced concrete core drilling

Geometric-kinematic model for reinforced concrete core drilling

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

Mechanical properties and wear resistance of Fe–Ni–Cu-based metal matrix composites reinforced with hollow corundum microspheres

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