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Zhou, Ming; Ngoi, B. K. A.; Wang, X.J.

doi:10.1023/a:1024857018463

Cited by 9 publications

(1 citation statement)

References 10 publications

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“…During the precision cutting process, tool wear was a complex problem. It not only had a close relationship with the properties of the work-piece materials, but also with the cutting model and cutting parameters [4][5][6]. After cutting 5 min, there were some micro chippings on the cutting edge, this was deduced by mechanical wear.…”

Section: Resultsmentioning

confidence: 91%

Study on the Mechanism of Diamond Wear in Precision Cutting of Isotropic Pyrolytic Graphite

Wang

Huang

et al. 2012

KEM

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Isotropic pyrolytic graphite is a kind of graphite material. Because of its excellent performance, it is gradually used in aero-engine turbine shaft seals. But this material is a kind of brittle material, and it wears seriously during the cutting process. Through analysis of the process of cutting this material with PCD insert, the main wear region and the wear pattern at different cutting time were obtained. Using the scanning electron microscopy to observe the wear regions, the wear mechanism of PCD was obtained. At the first stage of the wear mechanisms were mainly mechanical wear and abrasive wear, the main wear regions were rake face and the cutting edge. With the increase of cutting distance, about 32 min later, both the depth of the crater on the rake face and the depth of micro grooves on the flank face were increased. Abrasive wear on the cutting face and the micro grooves wear on the flank face were the main wear pattern at the stable wear stage. At rapid wear stage, cutting edge was transformed from micro chipping into tool tipping. This caused by erosion wear .Experimental results indicated that the wear pattern was typical mechanical wear, abrasive wear, cutting edge erosion wear and possible adhesive wear.

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Section: Resultsmentioning

confidence: 91%

Study on the Mechanism of Diamond Wear in Precision Cutting of Isotropic Pyrolytic Graphite

Wang

Huang

et al. 2012

KEM

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Predictive modeling and multiobjective optimization of diamond turning process of single-crystal silicon using RSM and desirability function approach

Jumare

Abou-El-Hossein

Abdulkadir

et al. 2019

Int J Adv Manuf Technol

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Investigation of the ‘double cross’ splitting mechanism of single-crystal diamond under nanoindentation via molecular dynamics simulation

Wang

et al. 2017

J Mol Model

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Elucidating the mechanical response of diamond is a difficult task due to its ultrahard nature. Here, we applied a molecular dynamics (MD) method to investigate the mechanical response of single-crystal diamond under nanoindentation. There was no obvious "pop in" phenomenon on the load-depth curve, and the elastic modulus deduced from the curve was 1128 GPa, which was similar to the value obtained from experimental measurements. Results from computed tomography (CT) and the coordination number showed that the distribution of the mismatched C atoms around the deformation zone took the form of a 'double cross.' The atoms around the indenter tip could be divided into two zones, a translation zone and a lattice distortion zone, based on their movements. Subsequent first-principles calculations revealed that the C-atom displacement barrier varied significantly with direction, which resulted in shear stress between the two zones and the formation of the double-cross splitting. Graphical Abstract The displacement of the atoms around the indenter tip.

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Untitled

Cited by 9 publications

References 10 publications

Study on the Mechanism of Diamond Wear in Precision Cutting of Isotropic Pyrolytic Graphite

Study on the Mechanism of Diamond Wear in Precision Cutting of Isotropic Pyrolytic Graphite

Predictive modeling and multiobjective optimization of diamond turning process of single-crystal silicon using RSM and desirability function approach

Investigation of the ‘double cross’ splitting mechanism of single-crystal diamond under nanoindentation via molecular dynamics simulation

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