Spark eroder / EDM machine

The LOTO-eng Spark Eroder / EDM Machine is the right machine to drill the gasket useful in the DAC cell experiments.
The gasket can be made in different materials such as Steel BeCu Tungsten etc. The gasket support can be customize to accept a large kind of diameters, from 3mm to 18mm.
The SPARK Eroder, an Electro Discharge Machine / EDM, realize a manufacturing process whereby a desired shape (hole) is obtained using electrical discharges (sparks).
Material is removed from the workpiece (gasket) by a series of rapidly recurring current discharges between two electrodes (tip and gasket) separated by a dielectric liquid and subject to an electric voltage.
SPARK Eroder is an automatic machine system designed with innovative concepts and solutions with decisive advantages to use in DAC’s cell utility for a fast and easy drilling of the gasket.
The duration and the efficiency of the ablation process depend on several factors which:
- power and voltage of the current emitted from the tip
- types of materials used for the tip and types of materials for the gasket
- type of dielectric liquid.

The EDM machine uses an owner and interactive software for managing the advance of the tip, controlling the level of discharge.
Thanks to the feedback circuit, the tip is kept upon the gasket, at the right distance, until the whole drilling process is complete.
The user can easily monitor the whole process thanks to a camera placed below the working area that sends the images to the managing software. The software permit to control the tip (tungsten wire from 50-to 500 microns) during the process. Moreover the software control the alignment step that is very important to have success during the gasket preparation.
MP4 Spark Eroder Instruction movie