A Review on Developments in Electrolytes and their Feeding Methods for ECDM Process

The need for electrochemical discharge machining (ECDM) has risen recently owning to the desire to produce micro-features in hard-to-machine materials. Electrolytes and their feeding methods play vital role that determine the machined surface characteristics. Sodium hydroxide is generally most prefe...

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Published inSILICON Vol. 15; no. 4; pp. 1571 - 1595
Main Authors Sharma, Sahil, Singh, Tarlochan, Dvivedi, Akshay
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.02.2023
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Electrolytes
Environmental Chemistry
Inorganic Chemistry
Lasers
Machining
Materials Science
Optical Devices
Optics
Photonics
Polymer Sciences
Review Paper
Sodium hydroxide
Surface properties
Electrolytes
Electrolyte feeding methods
Electrochemical discharge machining
Hybrid electrolytes
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Summary:The need for electrochemical discharge machining (ECDM) has risen recently owning to the desire to produce micro-features in hard-to-machine materials. Electrolytes and their feeding methods play vital role that determine the machined surface characteristics. Sodium hydroxide is generally most preferable electrolyte media for ECDM but hazardous in nature. Hence, there is need to investigate the other alternatives that can be sustainable, environmental and user friendly and can improves the overall efficiency, repeatability and accuracy of ECDM process. This paper overview the research work conducted in the subject of different electrolytes and the parameters that affects the electrolyte performance. In the current paper, the electrolytes have been classified into four major categories namely alkaline, neutral, acid and hybrid electrolytes. This work includes a comprehensive overview of process mechanism and capabilities of different electrolytes regarding work material and machined features. The effect and classification of electrolyte feeding methods have also been included. Moreover, this paper discusses the possible future opportunities that can be explored to improve machining characteristics of ECDM.
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ISSN:1876-990X
1876-9918
DOI:10.1007/s12633-022-02134-3