Used machine tools
Spark erosion cnc
The machines designed for machining operations by electroerosion
use the action of electric discharges on workpieces made of conductive metals. The electroerosion technique allows obtaining a high quality surface processing, combined with high execution speeds and localized impacts offering a high machining precision while minimizing the risk of deformation and deterioration of workpieces. There are different types of electroerosion machines: wire electroerosion
, fast drilling electroerosion, what interests us here is the spark erosion cnc
. The hobbing electroerosion is a method of electroerosion that consists of machining a workpiece hosting by fitting an electrode through the application of electric discharges. In practice, the workpiece undergoes the electric action of the electrode which shape is complementary to its. They are placed in a tank filled with an insulating dielectric liquid, which performs a dual function: the cooling of the machined workpieces and the draining of mud resulting from the capturing of microparticles material. During the operation, the tank is ionized by the passage of a high current and an electric arc is formed between the electrode and the workpiece to be machined. It’s the electric force that will realize the surfacing per se. On a CNC hobbing electroerosion machine, the digital control allows you to enjoy rather more precise adjustments. Many copies of CNC hobbing electroerosion machines are available on the second-hand market. Their reliability and the operation quality they allow to achieve depend on their checking. Among the leading manufacturers of CNC hobbing electroerosion machines, we can cite AGIE
, ONA, AGEMA Plus, Exeron, Hansen, Zimmer und Krein, and Anotronic. These brands are real references in the field.