复杂曲面电解加工阴极空间进给方向优化方法研究

蔡剑; 刘嘉; 赵龙

doi:10.13433/j.cnki.1003-8728.2015.1210

复杂曲面电解加工阴极空间进给方向优化方法研究

doi: 10.13433/j.cnki.1003-8728.2015.1210

蔡剑¹,
刘嘉²,
赵龙²

1.
南京航空航天大学金城学院, 南京 211156;
2.
南京航空航天大学机电学院, 南京 210016

基金项目:

国家自然科学基金项目(51405230)与航空科学基金项目(20133052)资助

详细信息

作者简介:
蔡剑(1982-),讲师,硕士,研究方向为最优化理论与方法,电化学制造,caijian4215806@163.com

计量
- 文章访问数: 166
- HTML全文浏览量: 33
- PDF下载量: 9
- 被引次数: 0
出版历程
- 收稿日期: 2015-03-02
- 刊出日期: 2015-12-05

Research on Optimization Method of Cathode Spatial Feeding Direction in ECM of Complex Curved Surface

1.
Jincheng College, Nanjing University of Aeronautics and Astronautics, Nanjing 211156, China;
2.
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 电解加工是航空发动机叶片、整体叶盘等复杂曲面零件的核心制造技术。阴极空间进给方向与阳极型面法线方向之间的θ角大小是影响电解加工精度的重要因素。传统阴极进给方向优化中,通常以θ角方差作为目标函数,在局部区域存在曲率突变的复杂曲面优化时,局部区域θ角仍可能较大,存在一定局限性。为了使全型面θ角最小,提出了以θ角集合最大夹角值为目标函数的优化新方法。以典型复杂曲面叶片为例,采用传统与提出方法分别开展进给方向优化,优化结果表明提出方法获得了合理的θ角分布。开展了两种优化方法的加工比较试验,提出方法试验样件具有更优的型面轮廓精度,证明了优化方法的可行性。
- 电解加工 /
- 进给方向 /
- 设计 /
- 优化
Abstract: Electrochemical machining (ECM) is one of the main technologies to produce complex curved surface part, such as blade and blisk. The θ angles, which between the feeding direction and the workpiece surface normal directions, is a critical factor affecting the ECM processing accuracy. The traditional method is to use the variance of θ angles as the objective function. In the optimization of complex curved surface with curvature mutation, the traditional method is limited. In order to reduce the θ angles on whole curved surface, a novel optimization method of tool spatial feeding direction evaluated by the maximum θ angle was proposed. Taking blade complex parts as example, the optimization experiment was carried out with the traditional and novel method. The results revealed that the θ angle distribution was more uniform with new optimization method. Based on the best spatial feeding directions of traditional and novel optimization method, the processing experiment of ECM blades was carried out. The present result shows that the specimen with novel optimization method has better contour accuracy. The feasibility of optimization method has been proved.
- design of experiments /
- electrochemistry /
- errors /
- experiments

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参考文献(17)

[1]	Klocke F, Klink A, Veselovac D, et al. Turbomachinery component manufacture by application of electrochemical, electro-physical and photonic processes[J]. CIRP Annals-Manufacturing Technology, 2014,63(2):703-726
[2]	Rajurkar K P, Sundaram M M, Malshe A P. Review of electrochemical and electrodischarge machining[J]. Procedia CIRP, 2013,6:13-26
[3]	史耀耀,段继豪,张军锋,等.整体叶盘制造工艺技术综述[J].航空制造技术,2012,(3):26-31 Shi Y Y, Duan J H, Zhang J F, et al. Blisk disc manufacturing process technology[J]. Aeronautical Manufacturing Technology, 2012,(3):26-29 (in Chinese)
[4]	Westley J A, Atkinson J, Duffield A. Generic aspects of tool design for electrochemical machining[J]. Journal of Materials Processing Technology, 2004,149(1-3):384-392
[5]	朱栋,朱荻,徐正扬.基于神经网络的叶片电解加工阴极修正仿真[J].华南理工大学学报(自然科学版),2010,38(2):60-66 Zhu D, Zhu D, Xu Z Y. Simulation of cathode modification for electrochemical machining of blade based on neural network[J]. Journal of South China University of Technology (Natural Science Edition), 2010,38(2):60-66 (in Chinese)
[6]	李志永,朱荻,王蕾.电解加工发动机叶片阴极进给方向的优化[J].航空学报,2003,24(6):563-567 Li Z Y, Zhu D, Wang L. Optimization of cathode feed direction in electrochemical machining of turbine blades[J]. Acta Aeronautica et Astronautica Sinica, 2003,24(6):563-567 (in Chinese)
[7]	徐正扬,朱荻,王蕾,等.叶片电解加工三头柔性进给方向优化设计[J].中国机械工程,2007,18(24):2921-2925 Xu Z Y, Zhu D, Wang L, et al. Optimization of cathode feeding direction with flexible 3-electrode feeding method in ECM of turbine blades[J]. China Mechanical Engineering, 2007,18(24):2921-2925 (in Chinese)
[8]	朱永伟,徐家文.复合平面摆动展成电解加工整体构件异形面的成形分析及应用[J].机械工程学报,2008,44(12):280-286 Zhu Y W, Xu J W. Shaping law and process study on combined wobbling feeds for electrochemical contour evolution machining integral component parts[J]. Chinese Journal of Mechanical Engineering, 2008,44(12):280-286 (in Chinese)
[9]	Xu Z Y, Xu Q, Zhu D, et al. A high efficiency electrochemical machining method of blisk channels[J]. CIRP Annals-Manufacturing Technology, 2013,62(1):187-190
[10]	施耘,徐正扬,朱荻.整体叶盘叶栅通道电解加工的工具结构设计及试验[J].机械科学与技术,2012,31(2):234-238 Shi Y, Xu Z Y, Zhu D. Cathode structure design and experimental research in electrochemical machining of cascade channels[J]. Mechanical Science and Technology for Aerospace Engineering, 2013,31(2):234-238 (in Chinese)
[11]	孙伦业,徐正扬,朱荻.镍基高温合金整体叶盘叶栅通道电解加工的成形精度控制[J].机械科学与技术,2013,32(8):1230-1234,1238 Sun L Y, Xu Z Y, Zhu D. The accuracy control of Ni-based superalloy blisk channels by electrochemical machining[J]. Mechanical Science and Technology for Aerospace Engineering, 2013,32(8):1230-1234,1238 (in Chinese)
[12]	李志勇,朱荻,史先传.发动机叶片电解加工工具进给方向分析和系统设计[J].机械科学与技术,2004,23(6):712-715 Li Z Y, Zhu D, Shi X C. Analysis of cathode feed direction and system design in electrochemical machining of turbine blades[J]. Mechanical Science and Technology, 2004,23(6):712-715 (in Chinese)
[13]	Bußmann M, Kraus J, Bayer E. An integrated cost-effective approach to blisk manufacturing[C]//Proceedings of 17th Symposium on Air Breathing Engines. Munich, Germany: SABE, 2005
[14]	徐正扬,朱荻,王蕾,等.三头进给电解加工叶片流场特性[J].机械工程学报,2008,44(4):189-194 Xu Z Y, Zhu D, Wang L, et al. Character of flow field on turbine blade with 3-electrode feeding method in electrochemical machining[J]. Chinese Journal of Mechanical Engineering, 2008,44(4):189-194 (in Chinese)
[15]	Zhu D, Zhu D, Xu Z Y. Optimal design of the sheet cathode using W-shaped electrolyte flow mode in ECM[J]. International Journal of Advanced Manufacturing Technology, 2012,62(1-4):147-156
[16]	刘嘉,徐正扬,万龙凯,等.整体叶盘叶型电解加工流场设计及实验[J].航空学报,2014,35(1):259-267 Liu J, Xu Z Y, Wan L K, et al. Design and experiment of electrolyte flow mode in electrochemical machining of blisk[J]. Acta Aeronautica et Astronautica Sinica, 2014,35(1):259-267 (in Chinese)
[17]	黄平,孟永钢.最优化理论与方法[M].北京:清华大学,2009 Huang P, Meng Y G. Optimal theories and methods[M]. Beijing: Tsinghua University Press, 2009 (in Chinese)