| 研究課題/領域番号 |
20K14625
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| 研究種目 |
若手研究
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| 配分区分 | 基金 |
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| 審査区分 |
小区分18020:加工学および生産工学関連
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| 研究機関 | 京都大学 |
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研究代表者 |
ZHU Wule 京都大学, 工学研究科, 特定助教 (30867528)
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| 研究期間 (年度) |
2020-04-01 – 2021-03-31
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| 研究課題ステータス |
中途終了 (2020年度)
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| 配分額 *注記 |
2,990千円 (直接経費: 2,300千円、間接経費: 690千円)
2021年度: 1,300千円 (直接経費: 1,000千円、間接経費: 300千円)
2020年度: 1,690千円 (直接経費: 1,300千円、間接経費: 390千円)
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| キーワード | Polishing / Ultra precision / Non-Newtonian fluid / polishing / non-newtonian fluid / ultra-precision / freeform surface |
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| 研究開始時の研究の概要 |
This research will disclose the fluid rheology behavior with scientific insights into its shearing mechanism in removing materials. We will verify the benefits of non-Newtonian fluid for considerable performance promotion and opens up a new class of non-contact sub-aperture polishing method.
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| 研究実績の概要 |
In this study, a new non-Newtonian sub-aperture polishing process was proposed to enable deterministic polishing of super smooth surfaces in contactless mode. Modelling and simulation were conducted and showed strong correlation between principal stress and removal rate. Experiments and comparisons demonstrated the distinctive performances of the new method with compound slurry (starch and polymer mixed), in obtaining scratch-free surface with optical quality.Scratch free surface is obtained using the new method compared to the generic bonnet polishing. Finally, sub-aperture polishing of a freeform bi-sinusoidal surface was achieved.
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