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.

用于金属或半导体的绝缘材料的精确或微加工方法。这项研究旨在改善性能电化学排放加工（ECDM）。（1）测量高速峰和低平均排放能密度的条件会导致提高电加工的形式准确性，例如电气排放加工（EDM）和电化学加工（ECM）。在脉冲持续时间小于1 ms的情况下观察到气泡产生的过程。当施加电压时，开始电解的电极周围的气泡产生。电极完全覆盖后，发生放电。气泡在脉冲间隔内消失了。因此，在低效率和短脉冲持续时间内观察到更少的去除。（2）为ECDM进行了多个电极重力输出型单元的加工单元，在该单元中进行了ECDM的重力类型单元，其中六个电极在上架上径向对齐，并在下部电极指南排成一排。 （3）分析加工机制的分析，在70。V作为施加电压为10 Hz的单个电极，电势功率和分裂功率之间比较了加工性能，为频率为10％，占用值为80％。在单电极和等电位的功率中，加工孔的边缘变得暗淡，因为丰富的气泡始终留在电极周围。另外，气泡的流动影响了孔的椭圆度。分裂功率的孔入口的形式准确性比其他功率更好。

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

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

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

Machining performance of electro-chemical discharge machining by forced discharge dispersion

强制放电分散电化学放电加工的加工性能

• 发表时间: 2009
• 作者: Katsushi Furutani;Yasuo Murase;Hiroyuki Shintani;Shuichi Arakawa
• 通讯作者: Shuichi Arakawa