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Abstract
Principle of operation of EDM is briefly outlined. It is shown that the automatic nature of this unconventional machine lends itself easily to computer control. The parameters to be computer-controlled for maximum machining efficiency are discussed with particular reference to the interface required. Current status in the field of computer-controlled EDM is reviewed. Work going (Hi in NAL in this area is presented with particular emphasis on the hardware realization of microcomputer-controlled EDM.