【作者】 刘欣； 徐正扬； 张彦； 曲宁松；

【Author】 Liu Xin,Xu Zhengyang,Zhang Yan,Qu Ningsong (Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

【机构】 南京航空航天大学机电工程学院；

【摘要】 提出了一种小孔的无再铸层电火花-电解组合加工工艺,充分利用了电火花穿孔加工效率高以及电解加工无再铸层的特点,在同一工位、同一管状工具电极、同一工作液(去离子水或自来水)条件下,先后进行电火花高速穿孔和电解扩孔过程,旨在得到无再铸层的小孔。设计并组建了该组合加工工艺的试验装置,进行了初步试验,在定向凝固镍基高温合金材料上加工出直径为600μm的小孔,再铸层得到明显去除。更多还原

【Abstract】 In this paper,a combined electrical machining process for small hole without recast layer is proposed.This process fully utilize the high efficiency of the high-speed EDM and the advantage of no recast layer of ECM.The same tool electrode and working fluid(deionized water or tap water) are used during the whole process.First,the small hole is machined by high-speed EDM,then ECM is employed to remove the recast layer which was formed in EDM.The experimental device for this process is designed and assembled.In the experiment,the small holes are obtained,and the recast layer is significantly removed.更多还原