Process control and power systems for electrochemical-erosion sinking (ELESIN)

A. K.M. De Silva, H. P. Schulze, J. A. McGeough, M. Zybura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


ELESIN-electrochemical-erosion sinking, a hybrid of EDM and ECM, is primarily developed to meet the demand for producing small ( < 3 mm) , high aspect ratio holes in difficult-to-machine metallic materials. ELESIN process performance is highly dependent on the successful combination of the two very different metal removal mechanisms -electrolytic dissolution and spark erosion-that occur in the inter electrode gap. To this end, a specialised power source and an advanced control system are essential aspects that deliver and control the pulse types in the gap. This paper describes the design, development and implementation of the specialised power generator that can deliver the essential voltage/current characteristics for ELESIN and the intelligent control system that tackles the complex and nonlinear nature of the process. Validation tests performed using a weak water based electrolyte demonstrated that by controlling the various inter-electrode gap pulses, process output in terms of: production rates, surface quality, dimensional accuracy can be optimised.

Original languageEnglish
Title of host publicationProceedings of the 16th International Symposium on Electromachining
PublisherShanghai Jiao Tong University Press
Number of pages4
ISBN (Print)9781632666482
Publication statusPublished - 23 Apr 2010
Event16th International Symposium on Electromachining - Shanghai, China
Duration: 19 Apr 201023 Apr 2010


Conference16th International Symposium on Electromachining
Abbreviated titleISEM - XVI


  • ECM
  • EDM
  • Hole sinking

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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