2916 KB27 KB199920252013Hackert-Oschätzchen, MatthiasHahn, MartinSchneider, JörgSchubert, AndreasZeidler, Henningštevilka:3letnik:59str. 156-164, SI 31ISSN:0039-2480COBISSID:13071131URN:URN:NBN:SI:doc-WPKQFVJCenAssociation of Mechanical Engineers and Technicians of Slovenia et al.Zveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikceramicceramicselectro discharge machiningelektroerozijska obdelavakeramikamicro machiningmikroobdelavanatančna obdelavaultrasonicultrasoundultrazvokvisokozmogljivi materialiEnhancing micro-EDM using ultrasonic vibration and approaches for machining of nonconducting ceramics|This paper presents the current status of investigation into the micro-EDM process with ultrasonic vibration assistance directly applied to the workpiece and indirectly applied high-intensity ultrasonic to the dielectric in metallic materials as well as in the machining of electrically nonconductive ceramic materials. Using ultrasonically aided micro-EDM, the process speed can be raised by up to 40%, enabling bores of less than 90 m in diameter with aspect ratios >40 for metallic materials. The modified setup using the assisting electrode principle allows for machining of an aspect ratio >5 for nonconductive ceramic materials, leading to new possibilities for the design and manufacture of complex, high-accuracy micro parts in high-performance engineering materialsTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo