The State of the Art and Development of Power Supply Technology in ECM

doi:10.3901/JME.2021.13.201

Abstract

Abstract: As the key basic device in electrochemical machining (ECM) system, ECM power supply directly influences the machining accuracy, process stability, surface quality and economy of ECM. To fully release the potential and take the advantages of ECM, it is necessary to systematically review the research literature of ECM power supply and predict its' development trend. Based on the systematic analyses of the processing principle of macro-scale ECM and electrochemical micromachining (ECMM), and the influencing factors of machining quality, efficiency and process stability of these two types of machining, the performance requirements for ECM power supply for different machining type and various applications of ECM are summarized. The related research progress of ECM power supply at home and abroad in recent years are comprehensively introduced. Then, several key technologies of ECM power supply in control, high frequency pulse generation, signal processing and output, machining gap detection,power supply protection are summarized. At the same time, the development trend of ECM power supply is predicted and prospected, which provides a reference for promoting the rapid development and wide application of ECM technology in China.

Key words: electrochemical machining, power supply, electrochemical micromachining, high frequency, pulse

CLC Number:

TG662

LUO Hongping, ZHANG Qingrong, LIU Guixian, ZHANG Yongjun. The State of the Art and Development of Power Supply Technology in ECM[J]. Journal of Mechanical Engineering, 2021, 57(13): 201-213.

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