Patent ID: 8299386
Filing Date: 2012-10-30
Classification: B23H,Y10T

Abstract:
1. Cutting device for spark-erosion machines in which, after passing through a machining region, the wire-electrode is cut up into sections which are disposed of as waste products, the device comprising, means for transporting the spent wire from a machining region towards a recovery receptacle, at least one electrical contact connected to one pole of a voltage/current source, wherein the wire is subjected to a dielectric fluid whose flow rate is sufficiently high to generate a turbulent flow regime and that the wire sporadically brushes against the at least one electrical contact by reason of random lateral movements of the dielectric fluid and acquires the potential of the contact, whereby the spent wire is cut up into sections, owing to electric current and the sections are of variable length and are disposed of as waste products are disposed of as waste products.