Results 1 to 10 of about 2,632 (215)
Investigation of critical material removal transitions in compliant machining of brittle ceramics
Materials & Design, 2020 Compliant machining processes, such as bonnet polishing, can be used on hard and brittle ceramic materials such as alumina and silicon carbide, to produce ultra-precise surfaces with sub-micron form accuracy and nanometric surface roughness.
Wu-Le Zhu, Beaucamp Anthony
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Analysis of Surface Characteristics and Spoke-shaped Removal through Ultra-precision Machining of Germanium Materials [PDF]
한국정밀공학회지, 2023 Germanium, an optical material, has high transmittance and refractive index and low light scattering in the infrared region, and research is being conducted to utilize it in various industrial fields.
Joong kyu Ham +9 more
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IEEE Access, 2022 This paper aims to accurately predict the surface quality of the special-shaped stone by robotic grinding and effectively guide the adjustment of process parameters to ensure stable grinding quality, applies a support vector machine model based on ...
Fangchen Yin, Qingzhi Ji, Changcai Cun
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Frontiers in Physics, 2022 Subsurface damage of 4H-silicon carbide (SiC) wafers, which is detrimental to the performance and lifetime of SiC-based photoelectric devices, is easily induced during surface machining process due to their particular mechanical and physical properties ...
Huihui Li +14 more
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Study of grinding and polishing tools in automated processing of curved stone
Case Studies in Construction Materials, 2022 The grinding and polishing of curved stone involve many steps, limiting the process's efficiency. This study proposes a one-step grinding and polishing process to simplify the process and achieve efficient machining.
Yun Shen, Jing Lu, Changcai Cui
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Frontiers in Physics, 2022 In this work, a series of amorphous carbon films were deposited on a-plane sapphire substrates by magnetron sputtering with deposition time from 15 min to 8 h, in order to investigate the thickness and optical properties in the process of growth in a non-
Ziqing Li +12 more
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Micromachines, 2022 Microcracks inevitably appear on the SiC wafer surface during conventional thinning. It is generally believed that the damage-free surfaces obtained during chemical reactions are an effective means of inhibiting and eliminating microcracks.
Zhihao Cheng +3 more
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Micromachines, 2023 Glassy carbon provides material characteristics that make it a promising candidate for use as a mould material in precision glass moulding. However, to effectively utilize glassy carbon, a thorough investigation into the machining of high-precision ...
Kirk Jahnel +4 more
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Prediction of subsurface microcrack depth of brittle materials based on co-training SVR
Jin'gangshi yu moliao moju gongcheng, 2023 In order to overcome the dilemma of insufficient effective sample number for subsurface microcrack depth in the lapping of brittle materials with fixed abrasives and achieve accurate prediction, a co-training SVR was used to construct the prediction ...
Chuang REN +3 more
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Yantu gongcheng xuebao, 2022 The discontinuous deformation analysis (DDA), as an implicit discrete element method, can simulate the evolution process from continuum to failure by introducing the virtual joint technology.
ZHANG Kai-yu 1, 2, LIU Feng 1, 2, XIA Kai-wen 1, 2
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