Affiliation of Author(s):机电学院
Journal:Zhongguo Jixie Gongcheng
Abstract:In order to solve the problems of large scale of ablation particles, the chip removal difficulty and processing instability in the processes of atomizing discharge ablation forming blind holes, the forming electrodes of hollow copper pipes combined with the square copper billets were made. The simulation analyses and comparisons of the flow field and particle concentration distribution for without wall slot electrodes and with the wall slot electrodes were carried out respectively. The atomizing electrode ablation experiments were carried out based on the flow field simulation results. And the surface topographies of the workpieces machined by two type electrodes were compared and analyzed. The experimental results show that when the slot width is as 1 mm, the slope angle is as 60°, the ablation efficiency is the highest. Under the same atomization ablation processing conditions, compared with the without wall slot electrodes, the removal rate of with wall slot electrodes increases by 15.7%, the relative loss rate of with wall slot electrodes increases by 6.2%. The surface quality of the with wall slot electrodes is better than that of without wall slot electrodes. The experimental results were verified the correctness of the simulation results. © 2019, China Mechanical Engineering Magazine Office. All right reserved.
ISSN No.:1004-132X
Translation or Not:no
Date of Publication:2019-06-10
Co-author:Shao, Junke,Kong, Linglei,Han, Yunxiao,lzd,tzj
Correspondence Author:Qiu Mingbo
Date of Publication:2019-06-10