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个人信息Personal Information
教授 博士生导师
招生学科专业：
机械工程 -- 【招收博士、硕士研究生】 -- 机电学院
机械工程(微细制造及微机电系统) -- 【招收硕士研究生】 -- 机电学院
机械 -- 【招收博士、硕士研究生】 -- 机电学院
性别：男
毕业院校：南京航空航天大学
学历：南京航空航天大学
学位：工学博士学位
所在单位：机电学院
办公地点：明故宫校区
电子邮箱：
Improvement of Hydrogen Bubbles Detaching from the Tool Surface in Micro Wire Electrochemical Machining by Applying Surface Microstructures
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所属单位：机电学院
发表刊物：JOURNAL OF THE ELECTROCHEMICAL SOCIETY
关键字：ENHANCEMENT FABRICATION
摘要：Wire electrochemical micromachining (WEMM) has increasingly come to be recognized as a flexible and effective method for producing planar contour microfeatures. The machining performance of WEMM is significantly influenced by the mass transport rate in the machining gap. Recently, it has been found that the use of a wire electrode with surface microstructures further increases the mass transport rate. Nevertheless, the mechanism through which the microstructures on the wire surface affect the flow field in the machining gap has been poorly understood. In this paper, a simplified mathematical model taking account of the velocity slippage caused by hydrogen bubbles attached to the axially traveling wire surface is first established. The effects on the flow field distribution in the machining gap of surface hydrophilicity and microstructures on the wire surface are theoretically analyzed. The results show that the microstructures facilitate rapid detachment of hydrogen bubbles from the wire surface, resulting in a reduction in velocity slippage and increasing the mass transport rate. A series of comparative experiments on WEMM using both smooth wires and microstructured wires prepared by laser direct scanning machining are conducted. The results are in accordance with the theoretical analysis. (C) 2017 The Electrochemical Society. All rights reserved.
ISSN号：0013-4651
是否译文：否
发表时间：2017-01-01
合写作者：He, H. D.,Zeng, Y. B.,Tong, P. Z.
通讯作者：曲宁松