增材制造闭式叶轮表面光整技术研究  

Research on Surface Finishing Technology of Closed Impeller Produced by Additive Manufacturing

作　　者：戴延丰 彭为康 郭朦 张晓静 DAI Yanfeng;PENG Weikang;Guo Meng;ZHANG Xiaojing(Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration,China Aviation Industry Jincheng Nanjing Electrical and Hydraulic Engineering Research,Nanjing 211106,China;SHANGGI Institute For Advanced Materials(Nanjing)Co.,Ltd.,Nanjing 210046,China)

机构地区：[1]中国航空工业集团公司金城南京机电液压工程研究中心,航空机电系统综合航空科技重点实验室,江苏南京211106 [2]南京尚吉增材制造研究院有限公司,江苏南京210046

出　　处：《电加工与模具》2023年第5期49-53,共5页Electromachining & Mould

摘　　要：针对闭式叶轮表面质量难以提升的问题,开展了不同抛光方法对叶轮表面质量的影响研究,分别对比了传统人工打磨结合喷砂、电场与流场协同表面精整工艺和流体抛光工艺的抛光效果。研究发现,采用电场与流场协同表面精整工艺和流体抛光工艺均可提升闭式叶轮表面质量,相较于传统工艺更能提升表面质量。基于此,研究了两种工艺协同作用对闭式叶轮表面质量的影响,发现综合利用两种技术可有效地改善叶轮表面质量,尤其是改善叶轮内流道出口双层狭缝内的表面状态。In order to solve the difficulties in improving the surface quality of the closed impeller,a study was conducted on the impact of different polishing methods on the surface quality of impeller.The polishing effects of traditional manual polishing and sandblasting,electric field and flow field synergistic surface finishing(EFSF),and fluid polishing(LSF)were compared.It was found that both EFSF and LSF methods can improve the surface quality of closed impeller,compared with the traditional processing method.Based on it,the synergistic effect of EFSF and LSF methods on the surface quality of closed impeller was studied.It was found that the comprehensive utilization of the two methods can effectively improve the surface quality of the impeller,especially the surface state inside the double layer narrow slot at the outlet of the impeller inner flow channel.

关 键 词：增材制造 闭式叶轮 表面光整 表面粗糙度 

分 类 号：TG669[金属学及工艺—金属切削加工及机床]