NASA NTRS · 19930000758
Monitor For Electrical-Discharge Machining
Abstract
Circuit monitors electrical-discharge-machining (EDM) process to detect and prevent abnormal arcing, which can produce unacceptable "burn" marks on workpiece. When voltage between EDM electrode and workpiece behaves in manner indicative of abnormal arcing, relay made to switch off EDM power, which remains off until operator attends to EDM setup and resets monitor.
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Burley, Richard K.. 1993-12-01. Monitor For Electrical-Discharge Machining. https://ntrs.nasa.gov/citations/19930000758
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