Surface modification and its mechanisms by in-process grinding technique

在线研磨技术的表面改性及其机理

• 批准号: 16360057
• 负责人: KOMOTORI Jun
• 金额: $ 9.6万
• 依托单位: Keio University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360057/
• 关键词: ELID Grinding; Surface modification; Cell culture; Fine Particle Bonbardment; Biomaterials; Titanium alloy; 研削; 生体適合性; 耐食性; 耐摩耗特性; 表面改質; 微粒子ピーニング処理; チタン合金

Bio-implants, such as artificial joints and artificial tooth root, require high efficacy and precision processing, because their shapes are very complicated. In addition, the downsizing of bio-implants has been progressing, thus requiring ultra-precision processing techniques. The aim of the present study was to clarify the applicability of the ELID (Electrolytic In-process Dressing) grinding as a surface modification machining process for biomaterials. Results are summarized as follows. (i) ELID grinding can obtain a high quality surface with low surface roughness. (ii) Comparing the surfaces finished by ELID grinding and those finished by polishing indicates the possibility of omitting the additional surface modifying processes after machining (iii) A surface finished by ELID grinding has biocompatibility and a particularly high corrosion resistance compared to that of the polished surface because of the formation of a thick and stable surface-modified oxide layer. This surface does not induce a cytotoxic reaction nor alter the physiological or functional behavior of cells. (iv) ELID grinding creates a very thin, hardened layer and produces a compressive residual stress on the surface. These improve the mechanical properties of the finished surface.

人工关节、人工牙根等生物植入物由于形状非常复杂，因此需要高效能和精密加工。此外，生物植入物的小型化不断发展，因此需要超精密加工技术。本研究的目的是阐明 ELID（电解在线修整）研磨作为生物材料表面改性加工工艺的适用性。结果总结如下。 (i) ELID磨削可以获得低表面粗糙度的高质量表面。 (ii) 比较通过 ELID 磨削加工的表面和通过抛光加工的表面，表明可以省略机加工后额外的表面改性工艺 (iii) 通过 ELID 磨削加工的表面与抛光加工的表面相比，具有生物相容性和特别高的耐腐蚀性表面由于形成了厚而稳定的表面改性氧化层。该表面不会引起细胞毒性反应，也不会改变细胞的生理或功能行为。 (iv) ELID 研磨会形成非常薄的硬化层，并在表面上产生残余压应力。这些提高了成品表面的机械性能。

项目成果

腐食・摩耗・疲労試験システムの構築とチタン合金の損傷評価

钛合金腐蚀/磨损/疲劳测试系统构建及损伤评价

• 发表时间: 2004
• 期刊: 材料試験技術 Vol.49・No.4
• 作者: Ohmori;H.;清水裕典
• 通讯作者: 清水裕典

SCM435H鋼の疲労特性に及ぼす微粒子ピーニング/窒化複合表面処理の影響

细颗粒喷丸/渗氮复合表面处理对SCM435H钢疲劳性能的影响

• 发表时间: 2006
• 期刊: 砥粒加工学会誌 50巻・3号
• 作者: 菊池将一;亀山雄高;深沢剣吾;小茂鳥潤
• 通讯作者: 小茂鳥潤

Investigation on Color-Finishing Process Conditions for Titanium Alloy Annlying a New Electrical Grinding Process

钛合金上色工艺条件研究及电磨新工艺

• 发表时间: 2004
• 期刊: Annals of the CIRP Vol.53・No.1
• 作者: Ohmori;H.
• 通讯作者: H.

Investigation on Grinding Characteristics and Surface-Modifying Effects of Biocompatible Co-Cr Alloy

生物相容性钴铬合金磨削特性及表面改性效果研究

• 发表时间: 2006
• 期刊: Annals of the CIRP Vol.55 No.1
• 作者: H.Ohmori;K.Katahira;Y.Akinou;J.Komotori;M.Mizutani
• 通讯作者: M.Mizutani

異なる再溶融処理を施した自溶合金溶射部材の界面密着強度評価

不同重熔处理自熔合金热喷涂件界面结合强度评价

• 发表时间: 2004
• 期刊: 材料試験技術 Vol.49・No.3
• 作者: 水谷正義;小茂鳥潤;永田 仁;片平和俊;大森 整;水谷正義;亀山雄高
• 通讯作者: 亀山雄高