Mechanism of Thermochemical-Mechanical Reactions between Nano-Polycrystalline Diamond and Polycrystalline Diamond Disk Generated under Dry Grinding

纳米多晶金刚石与干磨生成的多晶金刚石片的热化学机械反应机理

• 批准号: 23360071
• 负责人: SEMBA Takuya
• 金额: $ 5.08万
• 依托单位: Fukuoka Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-11-18 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23360071/
• 关键词: ナノマイクロ加工; ナノ多結晶ダイヤモンド; 焼結ダイヤモンド; 遷移金属; 熱化学反応; マイクロナノ加工; 超精密加工; 高硬度金型材料; 電気陰性度; 標準自由エネルギー

A polycrystalline diamond (PCD) disk, in which the cobalt (Co) commonly used as a sintering aid is replaced with a transition metal or a high-specific-heat material, was used as a truer, and dry grinding of a laser-preformed rake face of a radius-cutting tool made of nano-polycrystalline diamond (NPD) was conducted to clarify the mechanism by which a chip is removed from the rake face. The grinding test revealed that the surface roughness decreased with increasing specific heat capacity of the material replacing the Co when the heat-damaged layer, in which the diamond structure was transformed to that of graphite, was removed by diamond grains on the working surface of the truer. A ground surface roughness of 0.5 nm Rz was obtained when the truer with Co replaced by boron carbide (B4C) was employed.

将通常用作烧结助剂的钴（Co）用过渡金属或高比热材料代替的多晶金刚石（PCD）盘用作修整器，并且对由纳米多晶金刚石（NPD）制成的径向切削工具的激光预成型前刀面进行干式磨削，以阐明从前刀面去除切屑的机理。磨削试验表明，当砂轮工作面上的金刚石结构转变为石墨结构的热损伤层被金刚石磨粒去除后，表面粗糙度随取代Co材料比热容的增大而减小。当使用用碳化硼（B4C）代替Co的修整器时，获得了0.5nm Rz的磨削表面粗糙度。

项目成果

Forming Technique of Nano-Polycrystalline Diamond Cutting Tool Using Pulsed Fiber Laser

脉冲光纤激光纳米多晶金刚石刀具成形技术

• 发表时间: 2014
• 期刊: Key Engineering Materials(EI), Proceedings of ASPEN2013
• 作者: Yoshifumi Amamoto;Takuya Semba;Hitoshi Sumiya
• 通讯作者: Hitoshi Sumiya

Coを高比熱容量材料で置換したPCD製円板とナノ多結晶ダイヤモンドとの間に生じる熱化学反応のメカニズム

纳米多晶金刚石与高比热容材料取代Co的PCD盘之间发生热化学反应的机理

• 发表时间: 2012
• 作者: 坂本武司;沢見有輝;久保田章亀;峠睦;渡邉純二;藤田隆;金澤雅喜;五十嵐健二;(仙波卓弥)，天本祥文，角谷均
• 通讯作者: (仙波卓弥)，天本祥文，角谷均

ナノ多結晶ダイヤモンド製切削工具を用いた超硬合金の高速切削

使用纳米聚晶金刚石刀具高速切削硬质合金

• 发表时间: 2011
• 作者: 吉田昌史;天本祥文;仙波卓弥;角谷均
• 通讯作者: 角谷均

レーザを用いた NPD 製ノーズRバイトに対する切れ刃鋭利化成形技術

使用激光的 NPD 刀尖 R 钻头尖端锐化技术

• 发表时间: 2012
• 作者: 天本祥文;吉田昌史;仙波卓弥;角谷均
• 通讯作者: 角谷均

Mechanism of Thermochemical-Mechanical Reactions between Nano-Polycrystalline Diamond and Polycrystalline Diamond disk Generated under Dry Grinding

纳米多晶金刚石与干磨生成的多晶金刚石盘之间的热化学机械反应机理

• 发表时间: 2014
• 期刊: Key Engineering Materials (EI), Proceedings of ASPEN2013
• 作者: Takuya Semba;Hirokazu Fujiyama;Yoshifumi Amamoto;Hitoshi Sumiya
• 通讯作者: Hitoshi Sumiya