Metal
INERGAZKI
CONTINUOUS PARTICLE SEPARATION FOR EDM MACHINES
EDM is a non-contact material removal process using electrical discharges in a dielectric medium between the part and an electrode. The dielectric fluid cools the work area, contains the metal particles generated in the starting process, and must have a low content of these particles to maintain process efficiency, repeatability and quality of results. For this purpose, two types of filters are used in wire EDM (WEDM), which uses deionised water as a dielectric: those based on cartridges with paper filters and self-cleaning filters (mineral filter based on granules of different calibre) of which ONA is the only manufacturer. Today's new machine requirements in the premium sector (ONA AV series) require a higher separation capacity, which has been achieved by means of an additional stage based on conventional disposable cartridges. This solution, although feasible as it increases the lifetime of the disposable filters, requires management of the filter elements after they have been exhausted. The higher plant occupancy of the self-cleaning filters is also a customer concern.
ONA ELECTROEROSION is the world's most specialised manufacturer of EDM machines. INERGAZKI is being developed with the support of the AZTERLAN Technology Centre.
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