Abstract
This contribution reviews research work on Adaptive Control Systems for Electric Discharge Machining processes (EDM). Investigations on process phenomena have lead to modern, efficient, and reliable wire-cutting machines as well as die-sinkers. Because Adaptive Control Systems imply detection and monitoring hardware, a survey is presented of actual EDM measuring equipment for on-line monitoring of the process. To control EDM processes, very fast process control equipment is required to avoid that unefficient situations may develop and occur. For example, trends to arcing ought to be quickly detected and recognized so that proper actions can be taken in order to disrupt suchlike trends. The basic concepts of a new monitoring device, an “EDM Pulse Discriminator” (EDMPD) designed and developed at the K. U. Leuven are treated. This device is to be used in an Adaptive Control System for minimizing tool-wear or maximization of metal-removal rate. Performance and initial results obtained are presented.
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