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A novel polishing technology for leading and trailing edges of aero-engine blade

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Abstract

As one of the most important part of an aero-engine, blade has a critical effect on its manufacturing level. Especially, surface quality and profile accuracy of the leading and trailing edges have a direct influence on the aerodynamic performance of an aero-engine. At present, the machining methods of the leading and trailing edges are milling or grinding firstly, and then polishing by hand. This combination pattern of milling or grinding and polishing by hand has low efficiency and poor consistency. Therefore, a novel polishing technology for leading and trailing edges of blade using the flexible polishing wheel is proposed in this manuscript. Firstly, the overview of proposed novel polishing technology is presented. And then the basic principle and flexible polishing law of the flexible polishing wheel are introduced and analyzed. Finally, the verification experiments are carried out, including sample verification and blade verification. And the experiments results validate the feasibility of the proposed polishing technology. This novel polishing technology which instead of combination pattern of milling and polishing can simultaneously guarantee both profile accuracy and surface roughness, and the machining efficiency of blade edges will improve 2 times than the conventional method.

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All data and materials generated or analyzed during this study are included in this manuscript.

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Funding

This work is supported by the National Science and Technology Major Project of the Ministry of Science and Technology of China [grant number 2018ZX04004001].

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Authors and Affiliations

  1. School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, China

    Zheng-Qing Zhu, Zhi-Tong Chen & Yun Zhang

  2. Co-Innovation Center for Advanced Aero-Engine, Beijing, 100083, People’s Republic of China

    Zheng-Qing Zhu & Zhi-Tong Chen

  3. School of Energy and power Engineering, Beihang University, Beijing, 100191, China

    Zheng-Qing Zhu

Authors
  1. Zheng-Qing Zhu
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  2. Zhi-Tong Chen
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  3. Yun Zhang
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Contributions

Methodology and original draft preparation: Zhu Zheng-Qing; validation and investigation: Chen Zhi-Tong; formal analysis: Zhang Yun.

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Zhu, ZQ., Chen, ZT. & Zhang, Y. A novel polishing technology for leading and trailing edges of aero-engine blade. Int J Adv Manuf Technol 116, 1871–1880 (2021). https://doi.org/10.1007/s00170-021-07574-6

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  • DOI: https://doi.org/10.1007/s00170-021-07574-6

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