Machining Characteristics of a Hybrid Process of EDM in Gas Combined with Ultrasonic Vibration and AJM

Yan Cherng Lin, Jung Chou Hung, Han Ming Chow, A. Cheng Wang, Jyun Ting Chen

研究成果: 雜誌貢獻會議論文同行評審

26 引文 斯高帕斯(Scopus)

摘要

This study investigated the machining characteristics of a developed hybrid process of electrical discharge machining (EDM) in gas combined with abrasive jet machining (AJM) and ultrasonic vibration (USV). The developed hybrid EDM process was adopted to examine the machining characteristics such as material removal rate (MRR), electrode wear rate (EWR), and surface roughness (SR) for SKD 61 steel through the experimental works. In this study, the compressed dielectric media such as air, oxygen, and argon were employed in the experiments to investigate the effects on material removal efficiency, surface integrity, and thickness of recast layer. The experimental results show that the hybrid EDM process obtained higher MRR. In addition, the oxygen medium could facilitate the reaction within the machining area to increase the exploding and melting effects. Thus, the MRR gained by oxygen has the highest response. The argon was an inert gas that could prevent the oxidation during the process, and the lowest EWR as well as the finest SR could be received using argon as a dielectric media in the hybrid EDM process. The ultrasonic vibration incorporated in the hybrid EDM process could effectively reduce the thickness of recast layer. In general, the different dielectric media supplied into the machining area could create various mechanisms. From the experimental results, the USV and AJM incorporated into the hybrid EDM process could obviously promote the machining efficiency and surface quality.

原文???core.languages.en_GB???
頁(從 - 到)167-172
頁數6
期刊Procedia CIRP
42
DOIs
出版狀態已出版 - 2016
事件18th CIRP Conference on Electro Physical and Chemical Machining, ISEM 2016 - Tokyo, Japan
持續時間: 18 4月 201622 4月 2016

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