[1]徐正扬,朱荻,史先传.发动机叶片电解加工电解液流动方式优化及试验[J].东南大学学报(自然科学版),2008,38(3):434-438.[doi:10.3969/j.issn.1001-0505.2008.03.014]
 Xu Zhengyang,Zhu Di,Shi Xianchuan.Optimization and experimental investigation on electrolyte flow mode in ECM of turbine blades[J].Journal of Southeast University (Natural Science Edition),2008,38(3):434-438.[doi:10.3969/j.issn.1001-0505.2008.03.014]
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发动机叶片电解加工电解液流动方式优化及试验()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
38
期数:
2008年第3期
页码:
434-438
栏目:
材料科学与工程
出版日期:
2008-05-20

文章信息/Info

Title:
Optimization and experimental investigation on electrolyte flow mode in ECM of turbine blades
作者:
徐正扬1 朱荻1 史先传2
1 南京航空航天大学江苏省精密与微细制造技术重点实验室, 南京 210016; 2 江苏工业学院机械工程系, 常州 213006
Author(s):
Xu Zhengyang1 Zhu Di1 Shi Xianchuan2
1 Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2 Department of Mechanical Engineering, Jiangsu Polytechnic University, Changzhou 213006, China
关键词:
电解加工 发动机叶片 流动方式 优化
Keywords:
electrochemical machining turbine blade flow mode optimization
分类号:
TG662
DOI:
10.3969/j.issn.1001-0505.2008.03.014
摘要:
提出新的主动控制的电解液流动方式,在该方式中,电解液从缘板两侧流入,分别流经叶盆、叶背流道.建立了流场数学模型,用有限元方法对流动方式进行分析,并与传统侧流式流动进行了对比,分析表明采用该主动控制型流动方式有助于流场的均匀稳定.为了验证该流动方式的合理性,进行了叶片电解加工对比试验.试验表明:与传统流动方式相比,采用新的主动控制流动方式,叶片的表面粗糙度从1.87提高到0.38,同时加工精度也提高了0.05 mm,说明该流动方式设计合理,有利于提高叶片加工精度和表面质量.
Abstract:
The flow field in electrochemical machining(ECM)of turbine blade is studied. A mathematical model describing electrolyte flow in the interelectrode gap is developed and a new electrolyte flow mode named “active distributary mode” is proposed to machine turbine blade. In this mode, electrolyte flows from the platform of blade and is divided into two parts to flow across the convex and concave parts of blade individually. The flow mode is analyzed by finite element method and is compared with the traditional lateral flow modes. It is shown that the flow field in the interelectrode gap is more stable with the new flow mode. The experimental investigations were carried out in order to evaluate the rationality of the flow mode. The result reveals that the surface roughness can be improved to 0.38 with the new flow mode. In contrast, the surface roughness of the blade profile with the traditional lateral flow mode is 1.87. The machining accuracy can also be enhanced 0.05 mm. It can be concluded that the new flow mode is well designed and is in favour of improving the quality of turbine blade machined.

参考文献/References:

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相似文献/References:

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 Lu Yonghua,Zhao Dongbiao,Yun Naizhang,et al.On-line measuring interelectrode gap of processing blade based on information fusion[J].Journal of Southeast University (Natural Science Edition),2009,39(3):146.[doi:10.3969/j.issn.1001-0505.2009.01.028]
[2]王希,赵东标,云乃彰.基于力信号和智能控制的电解加工间隙检测与控制[J].东南大学学报(自然科学版),2005,35(5):719.[doi:10.3969/j.issn.1001-0505.2005.05.014]
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[3]孙春华,朱荻,李志永,等.考虑流场特性的发动机叶片电解加工阴极设计及数值仿真[J].东南大学学报(自然科学版),2004,34(5):613.[doi:10.3969/j.issn.1001-0505.2004.05.012]
 Sun Chunhua,Zhu Di,Li Zhiyong,et al.Cathode design and simulation of ECM turbine blade based on characteristics of liquid field[J].Journal of Southeast University (Natural Science Edition),2004,34(3):613.[doi:10.3969/j.issn.1001-0505.2004.05.012]

备注/Memo

备注/Memo:
作者简介: 徐正扬(1979—),男,博士生; 朱荻(联系人),男,教授,博士生导师,dzhu@nuaa.edu.cn.
基金项目: 航空科学基金资助项目(04H52055)、国家教育部博士点基金资助项目(20050287020).
引文格式: 徐正扬,朱荻,史先传.发动机叶片电解加工电解液流动方式优化及试验[J].东南大学学报:自然科学版,2008,38(3):434-438.
更新日期/Last Update: 2008-05-20