中国机械工程 ›› 2023, Vol. 34 ›› Issue (23): 2824-2831.DOI: 10.3969/j.issn.1004-132X.2023.23.006

• 机械基础工程 • 上一篇    下一篇

阵列变截面球槽结构电解加工流场设计及试验研究

严丁虎1,2;赵建社1,2;张昌昊2;高伟正1,2;朱寅1,2   

  1. 1.南京航空航天大学机电学院,南京,210016
    2.江苏集萃精密制造研究院有限公司,南京,210016
  • 出版日期:2023-12-10 发布日期:2024-01-03
  • 通讯作者: 赵建社(通信作者),男,1976年生,教授、博士研究生导师。研究方向为精密电解加工、精密电火花加工、特种加工新技术。E-mail:zhaojs@nuaa.edu.cn。
  • 作者简介:严丁虎,男,1998年生,硕士研究生。研究方向为精密电解加工技术。E-mail:404071771@qq.com。

Flow Field Design and Experimental Research of ECM of Array Spherical Groove Structures with Variable Cross-sections

YAN Dinghu1,2;ZHAO Jianshe1,2;ZHANG Changhao2;GAO Weizheng1,2;ZHU Yin1,2   

  1. 1.College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics 
    and Astronautics,Nanjing,210016
    2.JITRI Institute of Precision Manufacturing Co.,Ltd.,Nanjing,210016
  • Online:2023-12-10 Published:2024-01-03

摘要: 变截面球槽结构表面硬度高、三维形状复杂,采用电解加工具有较好的技术经济优势,但其加工精度和加工稳定性受流场影响比较明显。为提高电解液流场均匀性,基于流场仿真分析探讨了通液方式、流道结构对流场分布的影响规律,并开展了电解加工试验研究。仿真和试验结果表明:采用定向流道供液的分域通液方式有利于提高流场稳定性和流速分布一致性,可以有效提高工艺稳定性;优化出入口流道结构可以进一步提高球槽表面质量,能够满足加工稳定性和加工精度要求。

关键词: 变截面球槽, 电解加工, 流场设计, 流道结构

Abstract: Variable cross-section spherical groove structure had high surface hardness and complex 3D shape. ECM had better technical and economic advantages, but the processing accuracy and processing stability were affected by the flow field obviously. In order to improve the uniformity of the electrolyte flow field, the influences of the electrolyte flow mode and channel structure on the flow field distribution were discussed based on the flow field simulation analysis, and the ECM experiments were carried out. The simulation and test results show that the zonal liquid flow in directional channel is conducive to improving the stability of  the flow field and the consistency of the flow rate distribution, which may improve the processing stability. Optimization of the inlet and outlet flow channel structures may further improve the surface quality of the spherical groove, which may meet the requirements of machining stability and machining accuracy. 

Key words: variable cross-section spherical groove, electrochemical machining(ECM), flow field design, channel structure

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