EDM (electrical discharge machining, also known as spark eroding or wire erosion) is a machining process that uses the electrical discharges to alter the shape of a workpiece - an electrical current passes between an electrode and a workpiece which are separated by a dielectric liquid and as a result spark erodes the workpiece to form a desired final shape.
Types of EDM machines:
Combined with computer numeric controls (CNC), EDM machines become an accurate and reliable machining method that is now standard among more conventional cutting methods. It is particularly popular for small-volume productions such as prototypes. Various processes are possible with electrical discharge machining, including turning, milling, grinding and small hole drilling. Besides die and mould-making, EDM is typically applied in the automotive and aerospace industry, for example, in the production of aircraft engines.
However, EDM machining is the rather slow method compared to traditional machining, therefore high-volume tasks are not suited for this method. At the same time, the spark eroding process requires high power consumption. If need to rough cut a lot of parts quickly, electrical discharge machining probably isn’t the right processing machine.
Reliable and durability EDM machines from Asia by Knavi Group LLC.
Knavi Group LLC offers a large variety of reliable EDM machines for any task by the largest manufacturers from China, Taiwan (R.O.C), Korea and Japan. A wide range of high quality machine tools with a long warranty and lowest prices. Assistance in the selection of a needed machine and equipment, installation supervision and commissioning, training, warranty and post-warranty maintenance, door-delivery to any region of the country, supply of spare parts and tools.