Precision machining of insulated materials by electro-chemical discharge machining in electrolyte containing enriched micro bubbles

富含微气泡的电解液中电化学放电加工绝缘材料的精密加工

• 批准号: 18560118
• 负责人: FURUTANI Katsushi
• 金额: $ 2.6万
• 依托单位: Toyota Technological Institute
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560118/
• 关键词: machining and manufacturing; glass; precision part manufacturing; bubble; 絶縁体; 精密加工; マイクロバブル; 放電; 電解

Precision or micro machining methods for insulated materials lag behind ones for metals or semiconductors. This study aims to improve the performance electro-chemical discharge machining (ECDM).(1) Measurement of conditions in gapHigh peak and low average discharge energy density leads to improve the form accuracy in electrical machining such as electrical discharge machining (EDM) and electro-chemical machining (ECM). The process of bubble generation was observed under a pulse duration less than 1 ms. When the voltage was applied, the bubble generation around an electrode by the electrolysis began. After the electrode was completely covered, discharge occurred. The bubbles disappeared during the pulse intervals. Therefore, less removal was observed at a low duty and short pulse duration.(2) Machining unit with multiple electrodesA gravity-feed type unit for ECDM was made in which six electrodes were aligned radially at the upper holder and in line at the lower electrode guide. Each electrode was insulated from the others.(3) Analysis of machining mechanismThe machining performance was compared among the single electrode, equi-potential power and divided power under the conditions of 70. V as the applied voltage, 10 Hz as the frequency and 80% as the duty. In the single electrode and equi-potential power, the edge of machined hole became dull because the abundant bubbles always remained around the electrodes. In addition, the flow of the bubbles affected the ellipticity of the holes. The form accuracy of the hole entrance by the divided power was better than the others.

绝缘材料的精密或微加工方法落后于金属或半导体。本研究旨在提高电化学放电加工（ECDM）的性能。（1）间隙条件的测量高峰值和低平均放电能量密度可以提高电加工（例如放电加工（EDM）和电火花加工）中的形状精度。 -化学加工（ECM）。在小于1 ms的脉冲持续时间下观察气泡产生过程。当施加电压时，通过电解在电极周围开始产生气泡。电极完全覆盖后，发生放电。气泡在脉冲间隔期间消失。因此，在低负载和短脉冲持续时间下观察到较少的去除。（2）具有多个电极的加工单元制作了用于 ECDM 的重力进给型单元，其中六个电极在上支架处径向排列，在下电极处成一直线。指导。 (3)加工机理分析在外加电压70.V、频率10Hz、80℃条件下，比较单电极、等电位电源和分压电源的加工性能。 % 作为职责。在单电极和等电位电源下，加工孔的边缘变得钝，因为电极周围始终残留着大量的气泡。此外，气泡的流动影响孔的椭圆度。分力孔入口的形状精度优于其他方法。

项目成果

強制放電分散型電解放電加工の加工特性(第2報)放電電流の観察

强制放电分布式电解放电加工的加工特性（第2次报告） 放电电流的观测

• 发表时间: 2009
• 作者: 古谷克司;新谷啓行;村瀬靖男;荒川修一
• 通讯作者: 荒川修一

Performance of Electrochemical Discharge Machining by Forced Discharge Dispersion

强制放电分散电化学放电加工性能

• 发表时间: 2014
• 期刊: International Journal of Electrical Machining
• 作者: Katsushi Furutani;Hiroyuki Shintani;Yasuo Murase;Shuichi Arakawa
• 通讯作者: Shuichi Arakawa

Measurement of Current in Electro-chemical Discharge Machining by Forced Discharge Dispersion

通过强制放电分散测量电化学放电加工中的电流

• 发表时间: 2010
• 作者: Katsushi Furutani;Hiroyuki Shintani;Yasuo Murase;Shuichi Arakawa
• 通讯作者: Shuichi Arakawa

強制放電分散型電解放電加工の加工特性

强制放电分布式电解放电加工的加工特性

• 发表时间: 2013
• 期刊: 電気加工学会誌
• 作者: 古谷克司;新谷啓行;村瀬靖男;荒川修一
• 通讯作者: 荒川修一

強制放電分散型電解放電加工の加工特性(第3報)加工形状の観察

强制放电分布式电解放电加工的加工特性（第3次报告） 加工形状的观察

• 发表时间: 2010
• 作者: 古谷克司;新谷啓行;村瀬靖男;荒川修一
• 通讯作者: 荒川修一