A novel composite diamond-containing dispersed material of natural and synthetic diamonds powders and abrasive tools made of it

Poltoratskiy, V. G.; Lavrinenko, V. I.; Safonova, M. N.; Petasyuk, G. A.

doi:10.1016/j.diamond.2016.06.004

Cited by 9 publications

(4 citation statements)

References 10 publications

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“…On the other hand, a significant difference can be observed for the natural diamond, which displayed a much lower resistance to wear. The different behavior of the CVD and natural diamond tools are in agreement with [4,63,64,65], which means that the diamond material has a strong influence on the tool lifetime and its wear development.…”

Section: Resultssupporting

confidence: 66%

Dressing Tool Condition Monitoring through Impedance-Based Sensors: Part 1—PZT Diaphragm Transducer Response and EMI Sensing Technique

Oliveira

D’Addona

Aguiar

et al. 2018

Sensors

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Low-cost piezoelectric lead zirconate titanate (PZT) diaphragm transducers have attracted increasing attention as effective sensing devices, based on the electromechanical impedance (EMI) principle, for applications in many engineering sectors. Due to the considerable potential of PZT diaphragm transducers in terms of excellent electromechanical coupling properties, low implementation cost and wide-band frequency response, this technique provides a new alternative approach for tool condition monitoring in grinding processes competing with the conventional and expensive indirect sensor monitoring methods. This paper aims at assessing the structural changes caused by wear in single-point dressers during their lifetime, in order to ensure the reliable monitoring of the tool condition during dressing operations. Experimental dressing tests were conducted on aluminum oxide grinding wheels, which are highly relevant for industrial grinding processes. From the results obtained, it was verified that the dresser tip diamond material and the position of the PZT diaphragm transducer mounted on the dressing tool holder have a significant effect on the sensitivity of damage detection. This paper contributes to the realization of an effective monitoring system of dressing operations capable to avoid catastrophic tool failures as the proposed sensing approach can identify different stages of the dressing tool lifetime based on representative damage indices.

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Section: Resultssupporting

confidence: 66%

Dressing Tool Condition Monitoring through Impedance-Based Sensors: Part 1—PZT Diaphragm Transducer Response and EMI Sensing Technique

Oliveira

D’Addona

Aguiar

et al. 2018

Sensors

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“…The diamond particles exhibit multiple twins and dominating triangular (111) facets and many pyramidal features with sharp tips (Figure 1h), which is favorable for abrasive applications [26], particularly grinding and polishing of ceramics, hard non-ferrous alloys, composite materials essentially are based on the use of the diamond powders as superabrasives. The grit size increases with the etching time, as shown in SEM images in the inset in Figure 3c.…”

Section: Resultsmentioning

confidence: 99%

Diamond Deposition on Graphite in Hydrogen Microwave Plasma

Zhu

Yao

Dai

et al. 2018

J. Coat. Sci. Technol.

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Hydrogen plasma etching of graphite generates radicals that can be used for diamond synthesis by chemical vapor deposition (CVD). We studied the etching of polycrystalline graphite by a hydrogen microwave plasma, growth of diamond particles of the non-seeded graphite substrates, and characterized the diamond morphology, grain size distribution, growth rate, and phase purity. The graphite substrates served simultaneously as a carbon source, this being the specific feature of the process. A disorder of the graphite surface structure reduces as the result of the etching as revealed with Raman spectroscopy. The diamond growth rate of 3-5 µm/h was achieved, the quality of the produced diamond grains improving with growth time due to inherently nonstationary graphite etching process.

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“…Consequently, high process residual tensile stresses arise in the material of the component surface layer, and a large number of burns appears on the surface, which significantly reduces the performance properties of the component. The available ways to improve the performance indicators of abrasive tools for machining components from chrome-nickel steels and alloys associated, for example, with designing special grindstones [1][2][3][4][5] or with the activation of the used cutting/cooling process media [6][7][8][9][10], are often expensive and do not always provide the required quality of the component surface layer, as they are most often meant for processing low-alloy steels. Thuswise, a wide use of the components made of hard-to-treat chrome-nickel steels and alloys in the modern aircraft engine-building, generates a need for manufacturing cheap and efficient abrasive tools.…”

Section: Introductionmentioning

confidence: 99%

Abrasive tool for processing components made from chrome-nickel steels and alloys

et al. 2019

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The technology of obtaining an abrasive tool on a ceramic bond for surfacing components made of chrome-nickel steels and alloys including the composition of the abrasive mass with wood flour, and the process of tool impregnation with an aqueous solution of chrome diiodide are considered. The comparison results on the efficiency of grindstones made according to the developed technology with their redress life between two consecutive shapings, and the performance quality indices of the processed component surfaces are presented. An empirical dependence of the efficient grindstone life between two consecutive shapings on the component speed, length feed, infeed movement, and the chrome diiodide saturation in the impregnated grindstone, is obtained. It can be used by production managers to optimize the modes of surfacing components from chrome-nickel steels and alloys providing the required performance quality indices. The mechanism of loss of function of the grindstone impregnated with chrome diiodide is considered.

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A novel composite diamond-containing dispersed material of natural and synthetic diamonds powders and abrasive tools made of it

Cited by 9 publications

References 10 publications

Dressing Tool Condition Monitoring through Impedance-Based Sensors: Part 1—PZT Diaphragm Transducer Response and EMI Sensing Technique

Dressing Tool Condition Monitoring through Impedance-Based Sensors: Part 1—PZT Diaphragm Transducer Response and EMI Sensing Technique

Diamond Deposition on Graphite in Hydrogen Microwave Plasma

Abrasive tool for processing components made from chrome-nickel steels and alloys

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