航空发动机深孔槽结构电解加工流场仿真  

Simulation Analysis of Flow Field in the Electrolytic Machining of Deep Hole Slot Structure of Aero Eengine Parts

作　　者：闫鹏宇 石宇飞 范庆明[2,3] 张传运 薛成栋 YAN Pengyu;SHI Yufei;FAN Qingming;ZHANG Chuanyun;XUE Chengdong(AECC Sichuan Gas Turbine Establishment,Chengdu 610500,China;School of Mechanical and Electrical Engineering,Xi’an Technological University,Xi’an 710021,China;Shaanxi Digital Precision Electrochemical Processing Engineering Technology Research Center,Xi’an 710021,China)

机构地区：[1]中国航发四川燃气涡轮研究院,成都610500 [2]西安工业大学机电工程学院,西安710021 [3]陕西省数字化精密电解加工工程技术研究中心,西安710021

出　　处：《西安工业大学学报》2024年第3期337-345,共9页Journal of Xi’an Technological University

基　　金：中央军委装备发展部慧眼行动(356BAA97,5123F8D9);陕西省教育厅服务地方专项计划项目(20JC017)。

摘　　要：为了提高航空发动机零部件深孔槽结构的加工精度和稳定性,文中根据深孔槽结构特点及电解液正流式流动方式,设计了一种带有偏置结构的加工阴极,采用理论分析和仿真模拟的方法,分析了加工阴极缓冲板和出液孔排布方式对流场分布的影响规律。仿真结果表明:在加工阴极上增设带有出液孔的缓冲板,可以提高流场稳定性和流速分布的均匀性,满足加工稳定性和加工精度的要求。结论可为深孔槽结构高精度电解加工提供参考。In order to improve the machining accuracy and stability of the deep hole slot structures of aero engine parts,the paper presents a machining cathode with an offset structure which is designed based on the characteristics of the deep hole slot structure and the positive flow mode of the electrolyte.The influence of the buffer plate of the machining cathode and the arrangement of the outlet holes on the distribution of the flow field is analyzed by the methods of theoretical analysis and simulation.The simulation results show that the addition of a buffer plate with outlet holes to the processing cathode can improve the stability of flow field and the uniformity of flow velocity distribution,satisfying the requirements of processing stability and processing accuracy.This study can provide a reference for high precision electrolytic machining of deep hole slot structures.

关 键 词：深孔槽结构 电解加工 流场仿真 流速均匀性 

分 类 号：TG662[金属学及工艺—金属切削加工及机床] V263[航空宇航科学与技术—航空宇航制造工程]