Journal
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volume 209, Issue 4, Pages 1742-1746Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2008.04.031
Keywords
Material removal; Cemented carbide; Ultrasonic vibration; EDM; Gas
Funding
- Specialized Research Fund for the Doctoral Program of Higher Education [20030422014]
- National Natural Science Foundation of China [50575128]
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A new electrical discharge machining (EDM) technology named tool electrode ultrasonic vibration assisted electrical discharge machining in gas medium (UEDM in gas) is proposed and its principle is introduced. Relevant experimental equipment was designed by which a series of machining experiments of cemented carbide material were carried out. The mechanisms of cemented carbide material removal are discussed in detail through observing and analyzing the microstructures of machined surface. Five material removal mechanisms of cemented carbides machined by UEDM in gas were proposed, which are melting and evaporation, oxidation and decomposition, spalling, the force of high-pressure gas and the affection of ultrasonic vibration. (c) 2008 Elsevier B.V. All rights reserved.
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