The principle of EDM drilling machine is to use the fine metal material air conditioner copper tube (called electrode wire) as the electric level to carry out the single pulse corona discharge erosion metal material forming on the product workpiece. Different from WEDM machine tools and forming machines, the electrical level of EDM is hollow copper rod. The material passes through the small hole in the middle of the copper rod hole, which has the effect of cooling and milling.
High temperature erosion is caused by the charge and discharge between electrical level and metal materials. Metal materials can be used to produce and process micro holes of superhard stainless steel plate, carbide tool, copper, aluminum and all kinds of chemical substances with conductivity. At least 0.015 mm small holes can be produced and processed, and small holes with smooth finish can also be produced and processed. It is widely used in the production and processing of precision machinery. It is generally used as the supporting facilities and equipment of WEDM machine tools, such as threading holes, chemical fiber spinnerets, spinneret holes of wire spraying steel plates, filter plates of filter presses, group holes of grate plates and firewood The oil engine leaves, the heat exhaust holes of the engine block, the hydraulic press, the fuel pipe and air supply hole of the pneumatic valve body.
EDM drilling machine is a kind of WEDM numerical control lathe which uses the basic principle of WEDM to produce the hole with the specification less than 5mm. For the production and processing of large, medium and small stamping dies, its production and processing characteristics are not limited by the strength of metal composite materials. The die plate can be heat treated first, and then the necessary plate holes can be machined by this machine, so as to ensure the quality and quantity and improve the service life. Steel, pig iron and copper can be used as metal electrodes for special tools.
