Mechanism of spark generation during electrochemical discharge machining: a theoretical model and experimental verification
✍ Scribed by Indrajit Basak; Amitabha Ghosh
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 605 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0924-0136
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✦ Synopsis
The use of the electrochemical discharge phenomenon to machine materials is a very recent technique in the field of non-conventional machining. When the machined material is electrically conducting, the process is usually termed 'electrochemical arc machining' (ECAM), whereas for non-conducting work materials it is termed 'electrochemical dischage machining' (ECDM). Although in both cases electical discharge takes place through the electrolyte and plays a critical role, the mechanism of spark generation has not been investigated adequately. In the present work a theoretical model of this discharge phenome m is developed. With the help of the model, the critical voltage and current required to initiate discharge between the electrode and the electrolyte are estimated. The theoretically-predicted values compare quite well with experimental observations.