The development of Nanocrystalline cBN Abrasives and Their Application to Grinding

纳米晶立方氮化硼磨料的研制及其在磨削中的应用

• 批准号: 13450052
• 负责人: ICHIDA Yoshio
• 金额: $ 8.77万
• 依托单位: Utsunomiya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13450052/
• 关键词: New Polycrystalline CBN Abrasive; Direct Transformation; CBN Grinding Wheel; Fracture Strength; Grinding ratio; Grinding Force; Surface Roughness; Grinding Performance; cBN砥粒; ナノ結晶体; 研削加工

A new type of polycrystalline CBN grit has been developed by direct transformation at high temperature and pressure from hBN of high purity which was produced using a chemical vapor deposition process. This new polycrystalline CBN(CBN-U) grit possesses an average primary crystal grain diameter less than 1 μm and its fracture strength is around 1.5 times higher than conventional polycrystalline CBN(CBN-55) grit. In grinding high-speed tool steel, the grinding ratio of the wheel containing CBN-U grits is 7〜9 times higher than that of the wheel containing CBN-55 grits. The estimated tool Life of the CBN-U wheel, based on the roughness of the finished surface, is much longer than that of the CBN-55 wheel.

通过化学气相沉积工艺生产的高纯度六方氮化硼在高温高压下直接转变，开发出一种新型多晶立方氮化硼砂粒。这种新型多晶CBN(CBN-U)磨料的平均初晶粒径小于1μm，其断裂强度比传统多晶CBN(CBN-55)磨料高约1.5倍。在磨削高速工具钢时，含有CBN-U磨粒的砂轮的磨削比比含有CBN-55磨粒的砂轮高7〜9倍。根据精加工表面的粗糙度，CBN-U 砂轮的预计刀具寿命比 CBN-55 砂轮长得多。

项目成果

Yoshio Ichida, Ryunosuke Sato, Yoshitaka Morimoto, Sunarto: "Grinding of Superalloys with Ultrafine-Crystalline Cubic Boron Nitride Abrasives"Proceedings of An International Technical Conference on Diamond Cubic Boron Nitride and Their Applications, Vanco

Yoshio Ichida、Ryunosuke Sato、Yoshitaka Morimoto、Sunarto：“超细晶立方氮化硼磨料磨削高温合金”金刚石立方氮化硼及其应用国际技术会议论文集，Vanco

Hitoshi Kajino, Yoshio Ichida, Ryunosuke Sato, Hirotaka Kiminami, Kazutomo Hoshino, Masakazu Sato: "Enhancement of Grinding Performance based on Improvement of Uniformity in Structure in vitrified bonded cBN wheels"Proceedings of the ASPE's 18th Annual Me

Hitoshi Kajino、Yoshio Ichida、Ryunosuke Sato、Hirotaka Kiminami、Kazutomo Hoshino、Masakazu Sato：“基于改善陶瓷结合剂 cBN 砂轮结构均匀性的磨削性能的增强”ASPE 第 18 届年度会议论文集

梶野 仁, 市田良夫, 佐藤隆之介, 木南宏隆, 星野和友, 佐藤政和: "組織均一化に基づく高性能ビトリファインドボンドcBNホイールの開発研究"精密工学会誌. Vol.70No.1. 149-153 (2004)

Hitoshi Kajino、Yoshio Ichida、Ryunosuke Sato、Hirotaka Kinami、Kazutomo Hoshino、Masakazu Sato：“基于均匀结构的高性能陶瓷结合剂 cBN 砂轮的开发研究”日本精密工程学会杂志第 70 卷第 149 期。 -153 (2004)

Yoshio Ichida, Yoshitaka Morimoto, Ryunosuke Sato, Masaki Saijo, Takayoshi Koinuma: "Mechanical Properties and Grinding Characteristics of High Purity Polycrystalline CBN Grits"10th International Conference on Precision Engineering (ICPE), July 18-20, Yok

Yoshio Ichida、Yoshitaka Morimoto、Ryunosuke Sato、Masaki Saijo、Takayoshi Koinuma：“高纯多晶 CBN 磨粒的机械性能和磨削特性”第 10 届国际精密工程会议 (ICPE)，7 月 18-20 日，Yok

Yoshio Ichida, Ryunosuke Sato, Yoshitaka Morimoto, Yoshihiro Inoue: "Creep Feed Profile Grinding of High Speed Tool Steels with Ultrafine-Polycrystalline cBN Abrasives"Proceedings of the ASPE's 18th Annual Meeting, Portland/U.S.A.. (CD-ROM). (2003)

Yoshio Ichida、Ryunosuke Sato、Yoshitaka Morimoto、Yoshihiro Inoue：“使用超细多晶立方氮化硼磨料对高速工具钢进行蠕变进给仿形磨削”ASPE 第 18 届年会记录，美国波特兰（CD-ROM）。