Effect of free abrasive on sub-surface damage in rolling friction contact of optical lens

Chen, Weiping

doi:10.1007/s00170-018-2661-y

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Subsurface cracks can be divided into median and lateral cracks. The formation mechanism of the subsurface damage of the grinding process is shown in Figure 1, including the force system and the crack system [28,29]. The grinding process of brittle materials is usually accompanied by plastic deformation and brittle fracture.…”

Section: Formation Mechanism Of Subsurface Damagementioning

confidence: 99%

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Effect of Stress Wave between Adjacent Asperities Interaction on Subsurface Damage of Optical Glass in Precision Grinding

2019

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The interaction between adjacent asperities is a typical characteristic of the grinding process and plays an important role in the material removal mechanism. Therefore, in order to systematically investigate the formation mechanism of the subsurface damage, a precision grinding contact model between the diamond particle and optical glass with adjacent asperities is proposed in our research. The initiation and propagation mechanism of median/lateral cracks under residual stress, the propagation rules of the stress waves on the subsurface, and the interaction between the subsurface damage under stress superposition effect are fully investigated by a theoretical analysis and finite element simulation. The simulation results of the precision grinding model are verified by experiments, which show that the proposed numerical analysis model is reasonable and the finite element analysis process is feasible.

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Section: Formation Mechanism Of Subsurface Damagementioning

confidence: 99%

“…Therefore, the brittle cracking model is chosen as the failure mechanism, instead of the usual plastic failure and equivalent stress limit, because it can better reflect the initiation and propagation mechanism of brittle cracks [28].…”

Section: Modeling Of Frictional Contactmentioning

confidence: 99%

Effect of Stress Wave between Adjacent Asperities Interaction on Subsurface Damage of Optical Glass in Precision Grinding

2019

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“…The core of tribochemical mechanical polishing is the tribochemical reaction [22,23], which includes the tribochemical reaction under dry friction and the tribochemical reaction under wet conditions. The polishing solution used in tribochemical mechanical polishing does not contain free abrasives [24,25], the polishing solution is deionized water or chemical solution, and the workpiece material removal method is mostly removed by tribochemical wear [26,27]. Due to the advantages of good surface flatness and fewer scratches on the workpiece obtained by this method, it has attracted extensive the attention of many scholars.…”

Section: Introductionmentioning

confidence: 99%

Research of dry tribochemical mechanical polishing SiC with an innovation abrasive-catalytic abrasive cluster

Wang

Ding²,

Wang³

et al. 2023

Preprint

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Abrasive particles have a crucial influence on the material removal rate and surface quality of the workpiece in tribochemical mechanical polishing. Therefore, this article selects a self-made catalytic abrasive cluster to polish the 6H-SiC and explore the removal mechanism of polishin silicon carbide in the new catalytic abrasive cluster. The tribochemical mechanical polishing test and friction and wear test of 6H-SiC were carried out with three different abrasives, and the evaluation parameters such as material removal rate, surface roughness and friction coefficient were obtained. Quanta 200 scanning electron microscope(SEM) and oxfobrdinca 250 energy dispersive spectrometer (EDS) and x-ray diffraction(XRD)diffractometer were used to observe the surface, analyze the elements and determine the composition of silicon carbide workpiece after tribochemical mechanical polishing. The experimental result shows that oxygen is produced in the tribochemical mechanical polishing of silicon carbide by catalytic abrasive cluster, which makes the silicon carbide surface generate SiO2 shear film that is easy to be removed. Comparing with iron-based white corundum mixed abrasive and Al2O3 abrasive, the catalytic abrasive cluster has better processability for 6H-SiC, and the material removal rate can reach to 42.928nm/min.

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Research of dry tribochemical mechanical polishing SiC with an innovation abrasive-catalytic abrasive cluster

Wang

Ding

Wang

et al. 2023

Int J Adv Manuf Technol

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Effect of free abrasive on sub-surface damage in rolling friction contact of optical lens

Cited by 5 publications

References 12 publications

Effect of Stress Wave between Adjacent Asperities Interaction on Subsurface Damage of Optical Glass in Precision Grinding

Effect of Stress Wave between Adjacent Asperities Interaction on Subsurface Damage of Optical Glass in Precision Grinding

Research of dry tribochemical mechanical polishing SiC with an innovation abrasive-catalytic abrasive cluster

Research of dry tribochemical mechanical polishing SiC with an innovation abrasive-catalytic abrasive cluster

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