Xiaolong Fang
Nanjing University of Aeronautics and Astronautics
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Publication
Featured researches published by Xiaolong Fang.
Advances in Mechanical Engineering | 2014
Yongbin Zeng; Huajian Ji; Xiaolong Fang; Yufeng Wang; Ningsong Qu
Traveling wire electrochemical machining is a promising approach for the fabrication of various metal parts. However, the stray-current attack deteriorates the surface quality while it is employed to cut thick workpiece as a normal pulse or DC is used. In this paper, the characteristics of the stray-current attack in reciprocated traveling wire electrochemical machining are firstly identified, and special insulating methods are proposed to reduce the effect of the stray-current. The model of electric field is built. Both the simulation and the experimental results illustrate that the stray-current attack can be reduced significantly by the proposed insulating methods. Finally, structures with fine surface quality on stainless steel 304 with thickness of 20 mm were successfully produced.
Advances in Mechanical Engineering | 2014
Yongbin Zeng; Xiaolong Fang; Yudong Zhang; Ningsong Qu
Inherent characteristics of electrochemical drilling (ECD) mean that it is a major solution to the machining of deep small holes in difficult-to-cut materials. The removal of insoluble by-products from the machining gap determines the accuracy of control and limits process capacity. Pulsating electrolyte flow is introduced to enhance the removal rate of insoluble products by reducing the hold-down pressure caused by the electrolyte. Experiments are conducted to optimize a stimulus signal for the pulsation and to investigate the electrolyte pulsation frequency, pulsation amplitude, applied voltage, and electrode feed rate in the machining of deep small holes. The results indicate that optimized pulsating flow is effective in accelerating by-product removal and enhancing machining accuracy and maximum machining depth. With the optimized parameters of 5 Hz in frequency, 0.2 MPa in amplitude, and 0.5 MPa in average pressure, a deep hole was machined in titanium alloys of 20 mm depth and 1.97 mm averaged diameter.
Chinese Journal of Aeronautics | 2013
Ningsong Qu; Xiaolong Fang; Wei Li; Yongbin Zeng; Di Zhu
Journal of Materials Processing Technology | 2014
Xiaolong Fang; Ningsong Qu; Yudong Zhang; Z.Y. Xu; Di Zhu
Journal of Materials Processing Technology | 2010
Wei Wang; D. Zhu; Ningsong Qu; S.F. Huang; Xiaolong Fang
The International Journal of Advanced Manufacturing Technology | 2013
Ningsong Qu; Xiaolong Fang; Yan Zhang; D. Zhu
The International Journal of Advanced Manufacturing Technology | 2010
Wei Wang; Di Zhu; Ningsong Qu; Shaofu Huang; Xiaolong Fang
Journal of Materials Processing Technology | 2014
Xiaolong Fang; Ningsong Qu; Yudong Zhang; Z.Y. Xu; Di Zhu
Cirp Annals-manufacturing Technology | 2010
D. Zhu; Wei Wang; Xiaolong Fang; Ningsong Qu; Z.Y. Xu
The International Journal of Advanced Manufacturing Technology | 2013
Xiaolong Fang; Ningsong Qu; Hansong Li; Di Zhu