Ms. Jie Li Profile

Jie Li

at China Academy of Engineering Physics

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Publications (7)

Proceedings Article | 7 September 2021 Paper

Material removal mechanism of single crystal silicon by bonnet polishing

Bo Zhong, Nan Zheng, Jie Li, Xian-hua Chen

Proceedings Volume 11815, 118150C (2021) https://doi.org/10.1117/12.2594614

KEYWORDS: Silicon, Polishing, Crystals, Surface finishing, Optical components, Particles, Crystal optics, Photovoltaics, Chemical elements, Chemical analysis

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Proceedings Article | 18 December 2019 Paper

The effect of grinding processing parameters on aspheric small-scale waviness

Qiancai Wei, Lian Zhou, Xianhua Chen, Jie Li, Qinghua Zhang, Jian Wang

Proceedings Volume 11342, 113420C (2019) https://doi.org/10.1117/12.2543501

KEYWORDS: Aspheric lenses, Surface finishing, Polishing, Safety, Manufacturing, Lithium, Analytical research, Aspheric optics, Mirrors, Monochromatic aberrations

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Proceedings Article | 10 May 2019 Paper

Crack depth uniformity control techniques for large scale fused silica optics in grinding process

Lian Zhou, Nan Zheng, Xianhua Chen, Mincai Liu, Qinghua Zhang, Jian Wang, Jie Li

Proceedings Volume 11068, 1106815 (2019) https://doi.org/10.1117/12.2524151

KEYWORDS: Optical components, Particles, Diamond wheels, Glasses

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In order to improve the overall efficiency of machining and the defect quality of large aperture fused silica optics, it’s necessary to strictly control the crack defects and their depth uniformity in the first grinding process. Firstly, the morphology of three typical defects affecting the uniformity of crack depth was analyzed, which were scattered superficial sand holes, continuous linear defects and dotted linear defects. Then according to the morphology, the causes were investigated and the control techniques were proposed. The scattered superficial sand holes were caused by the large size glass powder, the diamond particles dropped from the grinding wheel and other foreign body impurities in the grinding fluid, which had been squeezed into the surface of the element by the grinding wheel. Through the clean filtration of grinding fluid, the quantity of such defects could be effectively reduced. The continuous linear defects were caused by stress concentration at the two sharp edges of the grinding wheel. Arcing the two sides of wheel could reduce the machining stress at the edges and avoid the occurrence of continuous linear defects. The dotted linear defects were caused by the stress concentration of the grooves on the surface of the wheel during grinding. After optimizing the dressing parameters to reduce the dressing force and avoid the grains of dressing wheel being embedded into the grinding wheel surface, all the grooves on the wheel surface and all the dashed line defects on the element surface disappeared practically. At the last, after integrating all the above control techniques, the grinding experiment of large scale fused silica optics was carried out. The scattered superficial sand holes, continuous linear defects and dotted linear defects on the surface of element after grinding were obviously alleviated. The crack depth of the whole aperture was between 4μm and 7μm. All the results indicated that the control techniques were efficacious.

Proceedings Article | 10 May 2019 Paper

Processing technology of magnetorheological finishing for large-aperture optical components

Jing Hou, Xianhua Chen, Jie Li, Bo Zhong, Wen-hui Deng, Nan Zheng

Proceedings Volume 11068, 110681I (2019) https://doi.org/10.1117/12.2524540

KEYWORDS: Magnetorheological finishing, Optical components, Polishing, Optics manufacturing, Surface finishing, Interferometers, Optical fabrication, Liquids, Image processing, Photovoltaics

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Proceedings Article | 16 January 2019 Paper

Effects of magnetorheological processing parameters on the force of optical elements

Jing Hou, Hong-xiang Wang, Xian-hua Chen, Jie Li, Bo Zhong, Wen-hui Deng

Proceedings Volume 10838, 1083813 (2019) https://doi.org/10.1117/12.2505334

KEYWORDS: Magnetism, Polishing, Magnetorheological finishing, Optical components, Liquids, Surface finishing, Fluid dynamics, Glasses, Polishing equipment, Optical fabrication

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Proceedings Article | 12 December 2018 Paper

Effect of precession mode on the surface error of optical components in bonnet polishing

Bo Zhong, Xian-hua Chen, Jie Li, Zhong-jiang Wen

Proceedings Volume 10847, 1084707 (2018) https://doi.org/10.1117/12.2503980

KEYWORDS: Polishing, Surface finishing, Optical components, Aspheric lenses, Surface roughness, Optics manufacturing, Laser welding, Process modeling, Convolution, Raster graphics

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Proceedings Article | 12 December 2018 Paper

Effect of magnetorheological processing parameters on polishing spots

Jing Hou, Hong-xiang Wang, Xian-hua Chen, Jie Li, Bo Zhong, Wen-hui Deng

Proceedings Volume 10847, 108470P (2018) https://doi.org/10.1117/12.2505428

KEYWORDS: Polishing, Liquids, Magnetorheological finishing, Surface finishing, Magnetism, Fluid dynamics, Optical components, Mirrors, Protactinium, Abrasives

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Showing 5 of 7 publications

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