Title* Technology and equipment for electrodischarge machining aided by ultrasonics
Improves the main technological performances of micro-electrodischarge machining in terms of machining rate, precision, machined surface roughness
The invention deals with technology and equipment of finishing by electrodischarge machining of micro-holes aided by ultrasonic vibration of electrode-tool on longitudinal axis of micro-hole after previous rough machining by pulse laser.
◙ Finishing technology of microholes, previously machined by pulsed laser, by electrodischarge machining aided by ultrasonic longitudinal vibrations of electrode-tool:
◙ Adjusting device of electrode-tool guide: rotation around horizontal axis on spherical surfaces, and rough and fine translation on vertical axis;
◙ Multiple guiding of electrode-tool, by superior and inferior bushing, prismatic surfaces and elastic elements.
◙ Electrode-tool clamping in antinode point by triple jaws and screwed nut;
◙ Dielectric lateral flushing through inferior bushing and interior flushing in case of tubular tools by a nozzle that enters the horn in nodal point.
◙ High machining rate and surface quality due to ultrasonically induced cavitation within working gap and tool guiding through bushings set;
◙ High quality of electrode-tool guiding in terms of position and shape precision;
◙ Efficient clamping and flushing of electrode-tool.
“Politehnica” University of Bucharest is the owner
Superior Education and Research
It is well known the trend of miniaturization in every field of manufacturing. The technology is applied to microholes, less than 999 to 100 micrometers
Series fabrication, research projects