叶片进排气边电解加工双侧进液对冲流场设计与试验  

Double-sided Electrolyte Supply Convection Flow Field Design and Experiment on Electrochemical Machining for Leading and Trailing Edges of Blades

作　　者：魏浩迪 徐正扬[1] 王玉弟 WEI Haodi;XU Zhengyang;WANG Yudi(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《电加工与模具》2024年第6期25-30,共6页Electromachining & Mould

基　　金：国家自然科学基金项目(52375443);江苏省自然科学基金项目(BK20230886)。

摘　　要：针对叶片进排气边电解加工提出一种双侧进液对冲流场,开展了双侧进液对冲流场与传统单侧进液正冲流场的流场对比仿真,并采用设计的薄片试件开展电解加工试验。仿真结果表明,设计的双侧进液对冲流场相较于传统单侧进液正冲流场在加工间隙内流速、压力分布更加均匀。试验结果显示,单侧进液正冲流场加工的薄片试件轮廓存在“偏头”缺陷,而双侧进液对冲流场加工的薄片试件缺陷得到较好的改善,精度为-0.034~0.044 mm,表面粗糙度为Ra0.367μm,均优于单侧进液正冲流场。For electrochemical machining of leading and trailing edges of blades,the article proposed a double-sided electrolyte supply convection flow field and conducted a comparative simulation of the flow field between the double-sided electrolyte supply convection flow field and the traditional single-sided electrolyte supply normal impingement flow field,and electrochemical machining experiments were carried out by using designed thin plate specimens.The simulation result showed that the designed double-sided electrolyte supply convection flow field got a more uniform distribution of flow field in the machining gap than traditional single-sided one.The experiment result showed that the contour of the thin section specimens processed by single-sided electrolyte supply normal impingement flow field had a head deviation defect,which was solved by double-sided electrolyte supply convection flow field with with an accuracy of-0.034 mm~0.044 mm and a surface roughness of Ra0.367μm,all of which were better than those of single-sided electrolyte supply normal impingement flow field.

关 键 词：进排气边 电解加工 流场设计 偏头 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]