| 摘要 |
Electroerosion system ( 10 ) for the production of a cavity ( 22 ) or a shaped hole in an element ( 20 ) to be processed, the system ( 10 ) comprises a tank ( 12 ) containing a dielectric fluid ( 14 ) and an electrode ( 16 ) connected to an electric power supply system ( 18 ) to supply a high voltage to the electrode ( 16 ) and to produce a series of electric discharges on the element ( 20 ) which is immersed together with the electrode ( 16 ) in the dielectric fluid ( 14 ), in order to obtain a surface erosion thereof, forming the cavity ( 22 ), the system ( 10 ) comprises ultrasonic vibration means ( 30 ) capable of transmitting a series of ultrasonic waves at a varying frequency to the dielectric fluid ( 14 ).
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