<?xml version="1.0" encoding="UTF-8"?> <article key="pdf/3380" mdate="2009-04-23 00:00:00"> <author>M. R. Shabgard and B. Sadizadeh and H. Kakoulvand</author> <title>The Effect of Ultrasonic Vibration of Workpiece in Electrical Discharge Machining of AISIH13 Tool Steel</title> <pages>404 - 408</pages> <year>2009</year> <volume>3</volume> <number>4</number> <journal>International Journal of Mechanical and Mechatronics Engineering</journal> <ee>https://publications.waset.org/pdf/3380</ee> <url>https://publications.waset.org/vol/28</url> <publisher>World Academy of Science, Engineering and Technology</publisher> <abstract>In the present work, a study has been made on the combination of the electrical discharge machining (EDM) with ultrasonic vibrations to improve the machining efficiency. In experiments the graphite used as tool electrode and material of workpiece was AISIH13 tool steel. The parameters such as discharge peak current and pulse duration were changed to explore their effect on the material removal rate (MRR), relative tool wear ratio (TWR) and surface roughness. From the experimental result it can be seen that ultrasonic vibration of the workpiece can significantly reduces the inactive pulses and improves the stability of process. It was found that ultrasonic assisted EDM (USEDM) is effective in attaining a high material removal rate (MRR) in finishing regime. </abstract> <index>Open Science Index 28, 2009</index> </article>