Ultra-smoothness Grinding Mechanism of Fine Ceramics with Metal Bonded #140 Diamond Wheel

金属结合剂精细陶瓷超光滑磨削机构

• 批准号: 13650124
• 负责人: YASUI Heiji
• 金额: $ 2.24万
• 依托单位: Kumamoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650124/
• 关键词: Fine ceramics; Ultra-Smoothness Grinding; Ductile-mode Grinding; High Removal Rate; Diamond wheel; Coarse Grain; Grinding wheel Surface; Grinding Condition; 研磨レス研削; ナノメータ; ファインセラミック; ダイヤモンド砥石; 粗粒ダイヤモンド砥粒

The research is done for the aims of building the high removal ultra-smoothness grinding technique of fine ceramics with coarse grain size diamond wheel. In the present research, first of all, by using silicon carbide ceramic, the mechanism of ultra-smoothness grinding with coarse grain diamond wheel is investigated experimentally and theoretically. The experiments are carried out with NC surface grinder. The bond, concentration and grain size of diamond wheel used are metal, 100 and #140, respectively. On the basis of the result, the existing of limiting smoothness, which can attain in traverse grinding is discussed theoretically and presented experimentally. Furthermore the newly devised ultra-smoothness grinding method is proposed and ascertained to be useful for finishing to near the ultra-smoothness surface.The main conclusions obtained using the new ultra-smoothness grinding method are as follows;(1) The surface roughness of silicon carbide ceramic formed by the ultra-smoothness grinding method using #140 diamond wheel is found to attain below 10nm(Ry) or 2nm(Ra).(2) The surface roughness of silicon nitride ceramic and alumina-titanium carbide ceramic is somewhat worse than silicon carbide ceramic though it attains to near the ultra-smoothness surface too.(3) In the cemented carbide without fine ceramics, the surface roughness attains below 30nm(Ry) or 4nm(Ra).

本研究旨在建立粗粒度金刚石砂轮磨削精细陶瓷的高去除率超光洁度技术。本文首先利用碳化硅陶瓷材料，对粗粒金刚石砂轮超光滑磨削机理进行了实验和理论研究。实验是在数控平面磨床上进行的。所用金刚石砂轮的结合剂为金属，浓度为100，粒度为140。在此基础上，对横磨过程中存在的极限光滑度进行了理论分析和实验分析。此外，提出了一种新的超光滑磨削方法，并确定了该方法可用于超光滑表面附近的精加工。采用新型超光滑磨削方法得到的主要结论如下：(1)采用140号金刚石砂轮超光滑磨削法加工的碳化硅陶瓷表面粗糙度可达10nm（Ry）以下或2nm（Ra）以下。(2)氮化硅陶瓷和碳化铝钛陶瓷的表面粗糙度略低于碳化硅陶瓷，但也接近超光滑表面。(3)在不含精细陶瓷的硬质合金中，表面粗糙度达到30nm（Ry）或4nm（Ra）以下。

项目成果

Heiji YASUI, Yutaka HIRAKI and Masato SAKATA: "Development of Automatic Image Processing System for Grinding Wheel Surface"JSPE. Vol. 67 No. 7. 1130-1134 (2001)

Heiji YASUI、Yutaka HIRAKI 和 Masato SAKATA：“砂轮表面自动图像处理系统的开发”JSPE。

Heiji YASUI, Yutaka HIRAKI and Masato SAKATA: "Development Of Automatic Image Processing System For Evaluation of Wheel Surface Condition In Ultra-Smoothness Grinding"Proceeding The 16th Annual Meeting American Society for Precision Engineering. 62-65 (20

Heiji YASUI、Yutaka HIRAKI 和 Masato SAKATA：“用于评估超平滑磨削中砂轮表面状况的自动图像处理系统的开发”在美国精密工程学会第 16 届年会上进行。

安井平司, 開豊, 坂田正登: "自動砥石作業面画像処理システムの開発"精密工学会誌. 68巻,2号. 1130-1134 (2001)

Heiji Yasui、Toyo Kai、Masato Sakata：“自动砂轮工作表面图像处理系统的开发”日本精密工程学会杂志第 68 卷，第 2 期，1130-1134（2001 年）。

H.YASUI, Y.HIRAKI, M.SAKATA, S.SAKAMOTO: "Development of Automatic Image Processing System for Evaluation of Wheel Surface Condition in Ultra-Smoothness Grinding"Proc. of ASPE 2001 Annual Meetings. Vol.25. 545-548 (2001)

H.YASUI、Y.HIRAKI、M.SAKATA、S.SAKAMOTO：“开发用于评估超光滑磨削中砂轮表面状况的自动图像处理系统”Proc。

H.YASUI, Y.HIRAKI, M.SAKATA, S.SAKAMOTO: "Influence of Cutting Edge Wear on Ductile-mode Grinding of Fine Ceramics with Coarse Grain Size Diamond Wheel"Proc. of 10th ICPE. 461-465 (2001)

H.YASUI，Y.HIRAKI，M.SAKATA，S.SAKAMOTO：“切削刃磨损对粗晶金刚石砂轮精细陶瓷延展性磨削的影响”Proc。