Study on Micro Electrochemical Machining Technology and its Influencing Factors

Abstract:

Electrochemical machining (ECM) is an anodic dissolution process of metal as anode ion by ion, and micro-ECM is a promising micromachining method at micro to meso-scale. Thus, a micro-ECM setup was developed to fabricate micro parts and explore the feasibility of micro-ECM at micro to meso-scale, including the design of high-frequency micro-energy pulse power supply. By using the detection unit of machining state and optical encoder, a closed loop control system for micro-ECM was developed. Under low concentration of passivating electrolyte, low machining voltage, micro rotating electrode and high-frequency short-pulse current, the machining gap can be reduced to about 10μm. The influence factors of the additives and the rotation of micro electrode on micro ECM were analysed by experiments. A micro-hole about 30μm in diameter was drilled by the rotating micro electrode.

• Periodical: Applied Mechanics and Materials (Volumes 395-396)
• Pages: 1062-1065
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.395-396.1062
• Online since: September 2013
• Authors: Xiao Hai Li*, Li Ping Zhao, Ying Chun Shi, Li Jie Zhao
• Keywords: Additive, Electrochemical Machining, Micro Electrode, Micro Hole, Micro Machining

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