Experimental investigations on the impact of different laser macro-structured diamond grinding wheels on alumina ceramic

Zhang, X. H.; Kang, Zhongxiong; Li, S.; Wu, Qiao; Zhang, Z. C.

doi:10.1007/s00170-018-1644-3

Cited by 21 publications

(9 citation statements)

References 18 publications

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“…However, the wear of the sharpened edges was higher and lead to shorter lifetime and, therefore, higher tool change costs. A similar study was recently presented by Zhang et al (2018), where reduced cutting forces for structured tools have been reported. The wear started at the laser induced sharp edges leading to round off, which changes the cutting characteristics and influences the surface quality.…”

Section: Introductionsupporting

confidence: 63%

High-Precision Laser Conditioning of Diamond Grinding Wheels

Ackerl¹,

Warhanek²,

Gysel³

et al. 2019

Preprint

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A novel approach for machining of cylindrical hard materials and arbitrary shapes is presented. Diamond grinding tools with complex geometry are manufactured with picosecond orthogonal and quasi-tangential combined laser ablation. This rapid and flexible approach for small-scale production of master tools for industrial production trumps conventional approaches. Hitherto, the overall process time is faster compared to conventional technologies with the benefit of free standing diamond grains. A laser manufacturing chain achieving an ablation rate of 35mm3/min with a maximal geometric deviation of 3μm is presented. The meta-stable diamond structure persists and is assessed via Raman spectroscopy. The final grinding tools is sharpened by a radial laser process removing preferentially the metal-based binding material. This isolates the statistically distributed diamond grains from the binder. Hence, high-precision diamond grinding wheels with a mean error of smaller 1μm over the complete contour can be manufactured.

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Section: Introductionsupporting

confidence: 63%

High-Precision Laser Conditioning of Diamond Grinding Wheels

Ackerl¹,

Warhanek²,

Gysel³

et al. 2019

Preprint

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show abstract

“…Wu et al [17] fabricated microstructured wheels with the use of laser beams, and observed ductile regime cutting and minimization of dimensional errors on hard ceramic workpieces. In other studies [18,19], different types of patterns or produced features such as microgrooves and holes were created on the wheel surface using laser technology, leading to the reduction of grinding forces, surface roughness, better self-sharpening ability, and the promotion of shearing instead of an ironing action of the wheel.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Assessment of the Role of Bond Material during Grinding of Superhard Materials with Diamond Wheels

et al. 2022

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The grinding of superhard materials poses an important challenge to manufacturing industry, due to the increased wear and the high possibility of fracture of both the wheel and workpiece material. Various strategies have been proposed for effective grinding of these materials, but further research is still required, especially in cases in which the hardness of the wheel and the workpiece are almost equal. In this study, the role of the bond of a diamond grinding wheel during the processing of superhard materials, such as synthetic diamond, is investigated using theoretical models and FE simulation. Six different types of bonds are studied and the effect of their properties on the stress distribution of workpiece material is determined. Results indicate that even a slight increase in elastic modulus can affect considerably the stress state of the workpiece, directly affecting the critical embedding value of grains into the bond, something that can alter considerably the efficiency of grinding superhard materials. Thus, grinding wheels with bonds of high elastic modulus should be selected in order to increase grain retention, increase processing efficiency, and reduce specific consumption even at higher cross feeds and wheel speeds.

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“…In response to the aforementioned problems, many scholars have developed various new grinding wheels, such as the ordered abrasive grain grinding wheel [ 13 ], the grooved grinding wheel [ 14 ] and the single-layer brazing grinding wheel [ 15 ]. Both the grooved grinding wheel and the ordered grinding wheel can improve processing quality and reduce the normal grinding force.…”

Section: Introductionmentioning

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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Experimental investigations on the impact of different laser macro-structured diamond grinding wheels on alumina ceramic

Cited by 21 publications

References 18 publications

High-Precision Laser Conditioning of Diamond Grinding Wheels

High-Precision Laser Conditioning of Diamond Grinding Wheels

Theoretical Assessment of the Role of Bond Material during Grinding of Superhard Materials with Diamond Wheels

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

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