期刊
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
卷 29, 期 1, 页码 117-122出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijrmhm.2010.09.001
关键词
Silicon carbide ceramic; End electric discharge milling; Surface integrity; Electrical discharge machining; Machining performance
资金
- Chinese National Natural Science Foundation [50675225]
- Ministry of Science and Technology of the People s Republic of China [2009GJC60047]
A new process of machining silicon carbide (SiC) ceramic using end electrical discharge milling is proposed in this paper The process is able to effectively machine a large surface area on SiC ceramic with good surface quality and low cost The effects of machining conditions on the material removal rate wear ratio and surface roughness have been investigated The surface microstructures machines by the new process are examined with a scanning electron microscope (SEM) an energy dispersive spectrometer (EDS) and an X-ray diffraction (XRD) The results show that the SiC ceramic is removed by melting evaporation and thermal spalling the material from the tool electrode can transfer to the workpiece and a combination reaction takes place during end electric discharge milling of the SiC ceramic Crown Copyright (C) 2010 Published by Elsevier Ltd All rights reserved
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