摘要
针对复杂型面金属零件的光整加工,提出磨粒高速流动电解机械复合光整加工方法:采用随电解液高速流动的微小磨粒,通过加工过程中的电化学溶解和磨粒连续微量划擦,改善工件表面质量。通过对比试验分析了复合加工、纯电解加工和纯磨粒高速流动加工等3种方法对加工效果的影响,并用单因素法加工不锈钢工件,分析不同试验因素对工件表面粗糙度的影响。结果表明:采用复合光整加工方法能有效提高光整加工效率,降低工件表面粗糙度,获得较好的加工效果;当加工电压为5V,加工间隙为2mm,使用粒径为75～106μm的Al_2O_3磨粒加工5min时,工件表面粗糙度可以达到0.17μm。
In order to deal with the finishing problems of complex profile metal parts, a new kind of electrochemical mechanical finishing （ECMF） method using high-speed abrasive flow is proposed. By means of electrochemical dissolution and tiny abrasive particles′ continuous micro scratch, the surface quality of workpiece is improved. In this study, the finishing principles is discussed. Meanwhile, the effect of hybrid fishing, pure electrochemical machining and pure high-speed abrasive machining under the same condition is analyzed through comparative experiments. The single-factor method is used to test the influence of different factors on surface roughness of stainless steel workpiece. The results show that the hybrid finishing process can effectively improve the machining efficiency, reduce the surface roughness, and achieve better processing results and a smooth surface, which has a R a of 0.17 μm obtained in 5 min.
作者
王金山
徐正扬
徐广超
WANG Jinshan;XU Zhengyang;XU Guangchao(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《金刚石与磨料磨具工程》
CAS
北大核心
2018年第5期50-55,共6页
Diamond & Abrasives Engineering
基金
中央高校基本科研业务经费资助(NE2014104)
江苏省杰出青年基金项目(BK20170031)
关键词
高速磨粒
电解加工
表面质量
不锈钢
high-speed abrasive
electrochemical machining
surface quality
stainless steel
