A Profile Clustering-based Grouping Method for the Synchronous Polishing of Aero-engine Blade

被引：0
|
作者：
Zhang Y. [1 ]
Wang X. [2 ]
Chen Z. [2 ]
Zhu Z. [2 ]
Ye H. [2 ]
机构：
[1] School of Mechanical and Materials Engineering, North China University of Technology, Beijing
[2] School of Mechanical Engineering and Automation, Beihang University, Beijing
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2022年 / 58卷 / 15期
关键词：
aero-engine blade; cluster grouping; complex profile; profile consistency; synchronous polishing;
D O I：
10.3901/JME.2022.15.292
中图分类号：
学科分类号：
摘要：
Blade is the core component of aero-engine, which manufacturing capability improvement has always been the focus of aviation manufacturing industry. With the high-efficiency machining of multi-spindle array machine tool, a profile clustering-based blade grouping method is proposed, aiming at the insufficient quality of synchronous polishing caused by poor consistency of actual profile. Firstly, the allowable intergroup difference is determined by the relationship of polishing indentation and removal depth. Secondly, the distribution of grouping points is determined by the profile difference of sampled blades. Thirdly, the profile consistency of two blades is expressed as the vector difference of measurement data for grouping points, and the grouping result can be established with the Ray-Turi index and allowable intergroup difference. Finally, the grouping and polishing experiment for batch blades has been performed to demonstrate the effectiveness of the proposed method, and the results show that it can improve the profile consistency within each group (less than 0.098 5 mm for the experiment). The area exceeding the allowable intergroup difference between groups is more than 16.67%. After multi-spindle array polishing, the cross-sectional profile of intergroup blades is less than 0.054 mm, and the precision difference at the same position is less than 0.021 mm, which shows that the proposed method is helpful to realize high-quality multi-spindle synchronous polishing of batch blades. © 2022 Editorial Office of Chinese Journal of Mechanical Engineering. All rights reserved.
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页码：292 / 301
页数：9
相关论文
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