What is EDM? TAUGIT Agie charmilles parts manufacturer
EDM is short for Electrical Discharge Machining. It has two names in China: in mainland, it is called sparking EDM, but in Taiwan, EDM is its name. Anyway, it is a kind of non-traditional machining and widely used for die making and machining industries. EDM can solve the problems that bother the traditional cutting methods in the superhard materials and complex shapes of workpiece parts. Such as, titanium alloy、tool steel、carbon steel、hard alloy and so on.
The history of EDM can date to 1943, the couple of Dr. B. R Lazarenko and Dr. N. I. Lazarenko inventing electric spark machine were from the Soviet Union. At that time, they used RC loop. In 1950s, it developed into RLC loop, then in 1960s,it changed into transistor and scr pulse generator. In 1970s, high and low voltage composite pulse 、multi channel pulse、continuous pulse and adjustable wave form pulse power just took the place. In 1980s, adapting Industrial-grade CPU control to make G code editor and other functions come true, greatly improving the performance. In 1980, Makino from Japan invented the first Digital control discharge machine. In 1990s, multi-axis control and ATC technology were instead of the CPU control. In recent years,
no resistance technology、linear guide technology and blending technology, etc. have been successfully applied to Electric discharge
machines.