Experimental and simulation study of ultrasonic elliptical vibration cutting SiCp/Al composites: chip formation and surface integrity study

Du, Yongsheng; Lu, Mingming; Lin, Jian; Yang, Yuekui

doi:10.1016/j.jmrt.2022.12.008

Cited by 22 publications

(2 citation statements)

References 37 publications

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“…The cutting edge forms a multi-dimensional path in the Z-X plane during every vibration cycle. The following equations, as described in earlier works [59][60][61][62][63], can be used to calculate the tool's trajectories with multi-dimensional vibration motion:…”

Section: Methodologiesmentioning

confidence: 99%

Mechanics of AlCuNiTi alloy orthogonal micro-cutting

Nguyen,

Fang

2023

Modelling Simul. Mater. Sci. Eng.

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The mechanical behavior of AlCuNiTi alloy during orthogonal micro-cutting consists of conventional cutting and complex-dimensional vibration cutting (CDVC) are investigated using molecular dynamics (MD). The material removal mechanism is studied in terms of phase angle, amplitude ratio, and vibration frequency. In both techniques, the stress and strain are localized in the contiguous location between the sample and the cutting tool. The sample temperature during CDVC is noticeably greater than during classical cutting, which might benefit the transition phase and make CDVC smoother. The total mean value cutting force of the CDVC decreases as the frequencies of vibration and ratios of amplitude increase; however, the mean values of force under the CDVC with different phase angles demonstrate hardly ever statistically significant change. The quantity of atoms in the chip indicates that the machined surface rate is higher under the CDVC, with a higher frequency of vibration, smaller phase angle, and amplitude ratio. Under CDVC, the chip of plastic deformation gets more pronounced and severe with a frequency of oscillation at 150 GHz, an amplitude at 1.5, and a phase angle degree of 75○ due to the lowest cutting ratio.

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Section: Methodologiesmentioning

confidence: 99%

Mechanics of AlCuNiTi alloy orthogonal micro-cutting

Nguyen,

Fang

2023

Modelling Simul. Mater. Sci. Eng.

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“…Currently, the exploration of surface topography is mainly based on numerical simulations (finite element simulations and MD simulations) and experimental methods. In the macroscopic scale, most of the studies are based on the establishment of topography characterization models [18,19], analysis of machining processes [20][21][22], process parameters [23], and lubrication conditions [24,25] to investigate the influence laws and mechanisms, and hence optimize the process parameters to improve the machining performance and surface quality. However, the exploration of surface morphology formation mechanisms and influence laws at the nanoscale, which is often carried out using MD simulation methods.…”

Section: Introductionmentioning

confidence: 99%

Atomic simulation for the effect of nano-cutting parameters on the 3D surface morphology of polycrystalline γ-TiAl alloy

Guo¹,

Cao²,

Fu³

et al. 2023

Modelling Simul. Mater. Sci. Eng.

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γ-TiAl alloy is one of the most potentially lightweight and high-temperature structural materials, and its machined surface quality has a significant effect on member service performance. Despite the extensive research on plastic removal and defect evolution under different cutting parameters, the forming mechanism of surface topography is not perfect under different cutting parameters. It is necessary to study the variation law of surface topography under the influence of different cutting parameters from the atomic scale. To this end, the influence of cutting depths and cutting speeds on the machined surface topography is investigated during nano-cutting of polycrystalline γ-TiAl alloys based on molecular dynamics simulation methods, and the effect of defective grain boundaries on cutting force fluctuations is analyzed. The results show that the effect of grain boundary on material deformation and dislocation obstruction is the main reason for the peak cutting force; with the increase of cutting depth, the average cutting force and friction coefficient increase, and both Sa and Sq show an increasing trend, which is the result of the joint action of plowing effect and grain boundary distribution; Sa and Sq show a decreasing and then increasing trend with the increase of cutting speed, and the critical cutting speed is 200m/s. This indicates that a smaller cutting depth and an appropriately higher cutting speed can effectively improve the surface quality of the polycrystalline γ-TiAl alloy, and optimize its nano-cutting process.

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Critical depth of cut modeling and ductility domain removal mechanism in elliptical vibration-assisted cutting BK7 optical glass

Lu,

Yang,

et al. 2023

Int J Adv Manuf Technol

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Experimental and simulation study of ultrasonic elliptical vibration cutting SiCp/Al composites: chip formation and surface integrity study

Cited by 22 publications

References 37 publications

Mechanics of AlCuNiTi alloy orthogonal micro-cutting

Mechanics of AlCuNiTi alloy orthogonal micro-cutting

Atomic simulation for the effect of nano-cutting parameters on the 3D surface morphology of polycrystalline γ-TiAl alloy

Critical depth of cut modeling and ductility domain removal mechanism in elliptical vibration-assisted cutting BK7 optical glass

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