A novel high-shear and low-pressure grinding method using specially developed abrasive tools

Tian, Yebing; Li, Linguang; Fan, Shuo; Guo, Qianjian; Cheng, Xiang

doi:10.1177/0954405420949106

Cited by 22 publications

(7 citation statements)

References 24 publications

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“…Moreover, the average value of the force ratio reaches the maximum value of 0.82 at 40 Pa·s. The simulation results were compared with the experimental results of Tian and Li [ 32 ]. Under the experimental conditions, the ratio of the tangential force to the normal force under the pure Kevlar fiber grinding condition is 0.357, and the ratio of the tangential force to the normal force is increased to 1.055 by adopting the high-shear low-pressure flexible grinding wheel.…”

Section: Resultsmentioning

confidence: 99%

Simulation Analysis of Cluster Effect of High-Shear Low-Pressure Grinding with Flexible Abrasive Tools

et al. 2021

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Based on the clustering effect of shear-thickening fluids (STFs), a high-shear low-pressure flexible grinding wheel has been developed. In order to explore the material removal mechanism, the coupled Eulerian—Lagrangian (CEL) method is adopted to simulate the novel grinding process. The simulation results show that particle clustering effects do occur at the tangential and bottom positions of the micro-convex peak when it instantaneously strikes the workpiece surface. The particle clusters drive the harder abrasive particles to resist the strong interactions of micro-convex peaks. The micro-convex peaks are removed due to the cutting effect of the harder abrasive particles. Compared with traditional grinding, the ratio of tangential force to normal force for the high-shear low-pressure flexible grinding wheel is improved. The various trends in force ratio are consistent with the experimental results, which verifies the effectiveness of high-shear low-pressure grinding.

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Section: Resultsmentioning

confidence: 99%

Simulation Analysis of Cluster Effect of High-Shear Low-Pressure Grinding with Flexible Abrasive Tools

et al. 2021

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“…The principle of HSLP grinding using the liquid-body-armor-like wheel is illustrated in Figure 1. 2,40,41,43 The novel wheel consisted of a wheel substrate and an abrasive layer. The abrasive layer was made of the shear thickening fluid, abrasive particles, woven polymer polyethylene fiber, and other chemical additives.…”

Section: Hslp Grinding Principlementioning

confidence: 99%

“…39 In order to increase tangential force and reduce normal force during the grinding process, the high-shear and low-pressure (HSLP) grinding method with a liquid-body-armor-like abrasive tool was proposed for machining the single crystal silicon in our previous studies. 40 The fumed silica (SiO 2 ) was used as both the dispersion phase of the shear thickening fluid and abrasive particles in the fabrication of the grinding wheel. However, the hardness of the fumed silica was too low to effectively cut the Inconel718 material.…”

Section: Introductionmentioning

confidence: 99%

Investigation on high-shear and low-pressure grinding with CBN liquid-body-armor-like wheel for Inconel718

Liu

Tian

Han

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part B:

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In this study, a CBN liquid-body-armor-like grinding wheel was developed for high-shear and low-pressure (HSLP) grinding of Inconel718 alloy. The material removal mechanism of the novel CBN liquid-body-armor-like wheel was introduced in detail. Particle clustering effect of the new wheel was studied via the finite element method. A series of grinding tests were carried out to investigate the grinding performance under the various conditions. It was shown that the surface roughness Ra of the ground workpiece decreased from initial 0.3 to 0.094 μm. Simultaneously, the specific material removal rate of 1.069 × 105 μm3/mm·s was attained. The power spectral density function (PSDF) was employed to reveal the percentage of waviness and roughness of the surface profile, which was mainly concentrated in 0–40k Hz as compared with 60–120k Hz before grinding. It indicated that particle clustering effect was generated in the grinding zone. Besides, the maximum peak amplitude of the cross-correlation function coefficient of the ground workpiece surfaces before and after grinding was less than 0.3. The original scratches were completely removed. New and smooth textures generated after grinding. The experimental results demonstrated that the newly developed CBN liquid-body-armor-like grinding wheel was effective for surface finishing of the Inconel718 workpiece.

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“…In common grinding hardening process, the grinding depth and feeding speed are the routine process variables that have impact on the manufacturing effect. 13,14 Therefore, the grinding depth and feeding speed are selected as the experimental factor. In order to improve the efficiency of experiment, the given different grinding depth and feeding speed are selected to carry on partial orthogonal experiment.…”

Section: Selection Of Experimental Factormentioning

confidence: 99%

A research on the mechanism and model of surface micro-damage in grinding hardening

Shi

Zhang

Xiu

2021

Advances in Mechanical Engineering

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Grinding hardening can obtain hardening effect besides fine machining effect on the surface of workpiece. A certain degree of surface micro-damage will be formed during grinding hardening process which mainly contains micro-crack, melting coating, decarburization, and surface scratch. In order to study the micro-damage of grinding hardening, the paper carries on a grinding hardening experiment and the characteristics of micro-damage are observed. The generation mechanism of micro-crack is revealed. It is formed by the accumulation of dislocation pile-up in the condition of grinding hardening process. When the grinding depth reaches a certain value, the surface micro-crack will be produced obviously and become more serious with the increasing of grinding depth. Other micro-damage containing surface melting coating, decarburization, and surface scratch are also studied and their relevance with micro-crack is revealed. Based on the grinding hardening theory and pile-up dislocation theory, a model for micro-crack of grinding hardening is established. The calculating result of the model accords with the experimental result in general.

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A novel high-shear and low-pressure grinding method using specially developed abrasive tools

Cited by 22 publications

References 24 publications

Simulation Analysis of Cluster Effect of High-Shear Low-Pressure Grinding with Flexible Abrasive Tools

Simulation Analysis of Cluster Effect of High-Shear Low-Pressure Grinding with Flexible Abrasive Tools

Investigation on high-shear and low-pressure grinding with CBN liquid-body-armor-like wheel for Inconel718

A research on the mechanism and model of surface micro-damage in grinding hardening

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