The effect of penetrated oxygen particles on combustion time of coated Al hydride nanoparticles in an oxygenated medium by applying molecular dynamics method via Lennard-Jones and reactive force-field potentials

Habibollahi, Navid; Ali, Aidy; Sajadi, S. Mohammad; Toghraie, Davood; Emami, Sobhan; İnç, Mustafa

doi:10.1016/j.enganabound.2023.03.041

Cited by 2 publications

(1 citation statement)

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“…Thus, using the improved cutting model in this study, the damage layer thickness of quartz glass after ultra-precision machining can be calculated from the processing parameters, tool wear and chip fracture thickness. Numerical calculation method is often used in the simulation to solve the data [33] and the process is shown in figure 4.…”

Section: Numerical Simulation and Compute Results Analysismentioning

confidence: 99%

The effect of tool wear on the damaged layer thickness and tool wear rate in ultra-precision turning of quartz glass

Liu

Tong

et al. 2023

J. Micromech. Microeng.

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Quartz glasses have been extensively used for many fields, such as semiconductor technology, optical instruments, inertial navigation and others. Ultra-precision turning with diamond tools can achieve high surface accuracy when processing non-ferrous materials. In recent years, ultra-precision turning has also been tried to be applied to process brittle materials, but there are constraints including small removal amount and tool wear. When diamond tools are used to cut quartz glass, tool wear occurs under the combined action of thermal effect and mechanical friction, which will affect the damaged layer thickness of the processed quartz glass. In this paper, the tool wear factor is led into the calculation of the extrusion volume, and the damaged layer thickness is calculated by the extrusion volume. Combined with the results of quartz glass turning experiments and the calculated results by simulation, the effect of tool wear factor on the damaged layer thickness and the tool wear rate is analyzed. The analysis shows that tool wear will lead to chip fracture thickness decrease and extrusion volume increase. Combined action of these two aspects, the damage layer thickness keeps unchanged at first and then rises with the increase of tool wear. In addition, the experimental results show that the tool wear rate rises with the increase of tool wear.

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Section: Numerical Simulation and Compute Results Analysismentioning

confidence: 99%