Electrochemical Discharge Grinding And Machining ...
Electrochemical Discharge Grinding And Machining Equipments Pdf. What is edm electrical discharge machining used on hard metals works with electrically conductive materials 3 history of edm in1770s discovered by joseph priestly developed in the mid 1970s in the mid 1980s the edm techniques were transferred to a machine tool todayit is a viable technique that helped shape the metal working.