Paterning of Micro Indents by Electro-Chemical Jet Machining

通过电化学喷射加工形成微凹痕的图案

• 批准号: 05650110
• 负责人: KUNIEDA Masanori
• 金额: $ 1.54万
• 依托单位: TOKYO UNIVERSITY OF AGRICULTURE & TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650110/
• 关键词: Electro-chemical machining; Maicro-machining; Jet; Finite element method; Simulation of Machining shape; 軸受; 潤滑

The present research proposes a numerical method to analyze the machined shape in the Electro-Chemical Jet Machining (ECJM) by calculating the ditribution of electric potential in the electrolyte using the Finite Element Method (FEM). In this ECJM, a high pressure electrolyte is jetted from a fine nozzle whose position is numerically controlled against the workpiece, and a pulsating machining current is supplied in the working gap for micro-fabrication.At first, assuming the voltage drop in the electolyte the theoretical machining current is calculated by means of integrating the current density, which can be obtained from the potential distribution, over the surface of the workpiece. Secondary, the assumed voltage drop is adjusted so that the theoretical machining current should coincide with the measured machining current. Then, the current density distribution over the surface of the workpiece is recalculated using the corrected voltage drop. Lastly, from the current density distribution the machined shape is found by taking the equivalent elution valence of the workpiece and the current efficiency, both of which are obtained from the measured relationship between the current density and the material removal rate, into account. It was found that the shape obtained by the numerical calculation coincided well with the experimental result.

本研究提出了一种数值方法，通过使用有限元方法（FEM）来计算电解质中电势中电势中电势的平位来分析电化喷气机加工（ECJM）中的加工形状。在此eCJM中，高压电解质是从一个细喷嘴中喷射的，其位置在工件上受到数值控制，并且在工作缝隙中提供了脉动加工电流以进行微型制造。在电解液中的电压下降下降时，可以通过将电流的电流计算出电流的电流，从而可以通过将电流的分配计算出来，从而可以将其整合起来，从而使其分配得出，从而使其量化，从而使其构成量化的分配，从而使其构成。次要的，假定的电压下降进行调整，以使理论加工电流应与测量的加工电流一致。然后，使用校正的电压下降重新计算工件表面上的电流密度分布。最后，从当前密度分布中，加工形状是通过将工件的等效洗脱价和当前效率的等效洗脱价发现的，这两者都是从当前密度和材料去除率之间的测量关系中获得的。发现通过数值计算获得的形状与实验结果很好。

项目成果

M.Kunieda et al.: "Influence of Micro Indents Formed by Electro-Chemical Jet Machining on Rolling Bearing Fatigue Life" ASME PED-Vol.64,Book No.H00861-1993. PED-Vol.64. 693-699 (1993)

M.Kunieda 等人：“电化学喷射加工形成的微凹痕对滚动轴承疲劳寿命的影响”ASME PED-Vol.64，书号 H00861-1993。

米田康治: "電解液ジェット加工における加工形状シミュレーション" 電気加工技術. Vol.18 No.59. 1-8 (1994)

米田浩二：“电解液喷射加工中的加工形状模拟”《电气加工技术》第 18 卷第 1-8 期（1994 年）。

M.Kunieda: "Influence of Micro Indents Formed by Electro-Chemical Jet Machining on Rolling Bearing Fatigue Life" ASME. PED-Vol.64, Book No.H00861. 693-699 (1993)

M.Kunieda：“电化学喷射加工形成的微凹痕对滚动轴承疲劳寿命的影响”ASME。

K.Yoneda: "Simulation of Machined Shape by Electro-Chemical Jet Machining" DENKI-KAKHO-GIJUTSU. Vol.18, No.59. 1-8 (1994)

K.Yoneda：“电化学喷射加工的加工形状模拟”DENKI-KAKHO-GIJUTSU。

M.Kunieda: "Influence of Micro Indents Formed by Electro-Chemical Jet Machining on Rolling Bearing Fatigue Life" ASME PED-Vol.64,Book No.H00861. PED-Vol.64. 693-699 (1993)

M.Kunieda：“电化学喷射加工形成的微凹痕对滚动轴承疲劳寿命的影响”ASME PED-Vol.64，书号 H00861。