Leading and Trailing Edges Shape Control Method of Blade Based on PECM

HUAN Heng; ZHENG Xin; LIU Haibo; ZHAO Wentao; YU Bing; CHEN Dong

doi:10.16080/j.issn1671-833x.2018.15.054

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Leading and Trailing Edges Shape Control Method of Blade Based on PECM

更新时间：2025-10-30

- Leading and Trailing Edges Shape Control Method of Blade Based on PECM
- Aeronautical Manufacturing Technology Vol. 61, Issue 15, Pages: 54-58(2018)
- 作者机构：
  
  中国航发沈阳黎明航空发动机有限责任公司,沈阳,110043
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2018.15.054
  CLC：
- Published：2018
- 稿件说明：
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桓恒，郑鑫，刘海波，赵文涛，于冰，陈东. 基于精密电解工艺的叶片进排气边形状控制方法[J]. 航空制造技术, 2018, 61(15): 54-58.

HUAN Heng, ZHENG Xin, LIU Haibo, ZHAO Wentao, YU Bing, CHEN Dong. Leading and Trailing Edges Shape Control Method of Blade Based on PECM. Aeronautical Manufacturing Technology, 2018, 61(15): 54-58.
桓恒，郑鑫，刘海波，赵文涛，于冰，陈东. 基于精密电解工艺的叶片进排气边形状控制方法[J]. 航空制造技术, 2018, 61(15): 54-58. DOI： 10.16080/j.issn1671-833x.2018.15.054.

HUAN Heng, ZHENG Xin, LIU Haibo, ZHAO Wentao, YU Bing, CHEN Dong. Leading and Trailing Edges Shape Control Method of Blade Based on PECM. Aeronautical Manufacturing Technology, 2018, 61(15): 54-58. DOI： 10.16080/j.issn1671-833x.2018.15.054.

摘要

针对高温合金复杂曲面叶片进排气边尺寸和形状的高精度要求，开展了精密电解加工试验研究。结果表明，利用振动进给电解机床与优化电极设计方法可以有效提高电解加工叶片进排气边尺寸形状精度。使用电导率85~90mS/cm，温度25℃的NaNO3电解液，叶盆和叶背电极振幅0.4mm，振频40Hz可加工出中心型面进气边形状满足设计要求，排气边接近设计要求的试件。在此基础上，探索采用振动光饰工艺作为精密电解加工技术的辅助手段解决叶片进排气边形状控制难题的方法。

Abstract

Aiming at the size and shape accuracy of edges of superalloy complex curved blades

an experimental study on precision electrolytic machining (PECM) was conducted. The results show that the use of vibration feed ECM machine tools and optimization of cathode design methods can improve the size of the leading and trailing edges accuracy by PECM processing. Using conductivity of 85- 90mS/cm and 25℃ electrolyte of NaNO3

amplitude of 0.4mm and vibration frequency of 40Hz process the shape of leading edges of the center profile meet the design requirements

and trailing edges is close to the design requirements. On this basis

as a supplementary means of PECM

exploring to solve the problems of the shape control of blade edges by combining with vibration lighting process.

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