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所属单位：机电学院

发表刊物：INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY

关键字：ECM Electrochemical machining Micro-machining Microstructures Laser machining Micro-wire

摘要：Efficient electrolyte refreshment has been proved to be significantly important in wire electrochemical micro-machining (WEMM). Surface microstructures can improve the hydrophilicity of most metallic surfaces, resulting in an increased adhesion energy between the liquid and solid surface. This paper approached a method of WEMM using a wire electrode with surface microstructures to enhance the efficiency of mass transport in the machining area. Microstructures were fabricated on a 50-mu m-diameter tungsten wire using nanosecond laser machining. A series of laser-machining experiments were carried, and spike-like microstructures with various sizes were successfully fabricated on the wire electrode via adjusting the laser fluence. Comparative experiments of WEMM using a smooth electrode and laser-machined ones were performed. The experimental results revealed that the wire electrode with surface microstructures exhibited higher hydrophilicity than the smooth one. Using a wire electrode with surface microstructures in WEMM with tool axial vibration could effectively enhance the mass transport efficiency, resulting in improving machining efficiency and homogeneity of machined slit. The maximum feed rate able to be applied increased 2.5 times, and the standard deviation of the machined slit decreased from 1.6 to 0.5 mu m.

ISSN号：0268-3768

是否译文：否

发表时间：2017-04-01

合写作者：He, H. D.,Zeng, Y. B.,Yao, Y. Y.

通讯作者：曲宁松