• Electrochemical discharge machining: Principle and possibilities

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    • Keywords


      Electrochemical discharge machining; switching phenomenon; spark generation; inductance; micro-welding

    • Abstract


      This paper highlights the important results of the investigations on Electrochemical Discharge Machining (ECDM) conducted by the author and his coresearchers. It has been found that “switching phenomenon” plays a crucial role in spark generation and not the straightforward breakdown of the non-conducting vapour blanket. The mechanism of spark generation has been understood reasonably well and inductance in the circuit has emerged as an important process parameter from the investigations. This information has been effectively used to improve the process capability of ECDM by a substantial amount. It has also been shown how ECD can be very conveniently used for micro-welding operation without using any sophisticated arrangement.

    • Author Affiliations


      Amitabha Ghosh1 2

      1. Department of Mechanical Engineering, Indian Institute of Technology, Kanpur - 208 016, India
      2. Indian Institute of Technology, Kharagpur - 721 302, India
    • Dates

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