Electrochemical and electro-discharge machining with a threshold current

A. A. Lacey, M. Shillor

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


The electrochemical machining and electro-discharge machining of a metal objectto form a hole are considered. The processes are modelled as evolutionary elliptic free-boundary problems in which the electric potential satisfies Laplace's equation in the electrolyte and satisfies two conditions (one describing the rate of machining) on the surface of the object. The behaviour of the evolving boundary and some qualitative features of steady-state solutions are discussed. © 1987 Oxford University Press 1987.

Original languageEnglish
Pages (from-to)121-142
Number of pages22
JournalIMA Journal of Applied Mathematics
Issue number2
Publication statusPublished - 1987


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