Analysis of hydrogen bubble distribution and its effect on current density in bipolar pulsed ECM using COMSOL Multiphysics®【Conference2023発表資料】
こちらの資料は、COMSOL Conference 2023（2023年12月開催）の発表資料をアーカイブ化したものです。
概要
Reducing stray corrosion is one of the important considerations that must be overcome in the process of achieving precision electrochemical machining (ECM). In our previous work, the stray corrosion on the workpiece surface can be reduced effectively in electrochemical machining using bipolar pulses and an auxiliary electrode. This study aims to analyze the problem from the perspective of hydrogen bubbles, which are generated at the cathode surfaces of workpiece and tool in the negative pulse period, and its effect on the distribution of machining current in the positive pulse period. For this purpose, a simulation model was established and the bubble distribution was calculated using COMSOL Multiphysics® to get a reasonable interpretation. The simulation results show that the hydrogen bubbles mainly generate in the non-machining area and the sidewall of tool, which can help to reduce stray current and avoid dissolution in unwanted area.
発表者
QINGRONG ZHANG 様
共同研究社
夏 恒 (東京農工大学/大学院工学研究院先端機械システム部門/教授)
東京農工大学 Department of Mechanical Systems Engineering Doctoral course student
キーワード
COMSOL Multiphysics®、電磁気学、光学、マルチフィジックスモデリング
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