Advances in Manufacturing ›› 2025, Vol. 13 ›› Issue (2): 377-394.doi: 10.1007/s40436-024-00505-0

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Investigation of control method on blade shape accuracy of blisk in vibration finishing

Chang-Feng Yao1,2, Yun-Qi Sun1,2, Liang Tan1,2, Min-Chao Cui1,2, Ding-Hua Zhang1,2, Jun-Xue Ren1,2   

  1. 1. Key Laboratory of High Performance Manufacturing for Aero Engine, Ministry of Industry and Information Technology, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China;
    2. Engineering Research Center of Advanced Manufacturing Technology for Aero Engine, Ministry of Education, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
  • Received:2023-08-20 Revised:2023-09-30 Published:2025-05-16
  • Contact: Chang-Feng Yao,E-mail:chfyao@nwpu.edu.cn E-mail:chfyao@nwpu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Grant Nos. 51875472, 91860206, and 92160301), the National Science and Technology Major Project (Grant No. 2017-VII-0001-0094), and the China Postdoctoral Science Foundation (Grant No. 2022M712199).

Abstract: Vibration finishing can effectively reduce the surface roughness of blisks and change blade shape accuracy. This study investigates the influence of vibration finishing on the shape accuracy of the blade part of the blisk. The influence of the fixed attitude of the blisk on the position accuracy and profile accuracy of different measuring sections of the blade is analyzed. The changes in the blade geometry before and after vibration finishing are analyzed. The adjustment method of blade disc attitude in the machining process is developed, and the tooling used to fix the blade disc in the vibration finishing is improved. By controlling the deformation in different time periods to offset each other, the contact between the abrasive and the blade edge is reduced, effectively reducing the displacement of the blade section and the excessive wear of the edge.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-024-00505-0

Key words: Blisk, Vibration finishing, Deformation, Position accuracy, Contour accuracy