Advances in Manufacturing ›› 2021, Vol. 9 ›› Issue (3): 430-445.doi: 10.1007/s40436-021-00351-4

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Three-dimensional modeling and reconstructive change of residual stress during machining process of milling, polishing, heat treatment, vibratory finishing, and shot peening of fan blade

Ji-Yin Zhang1,2, Chang-Feng Yao1,2, Min-Chao Cui1,2, Liang Tan1,2, Yun-Qi Sun1,2   

  1. 1 Key Laboratory of High Performance Manufacturing for Aero Engine, Northwestern Polytechnical University, Ministry of Industry and Information Technology, Xi'an 710072, People's Republic of China;
    2 Engineering Research Center of Advanced Manufacturing Technology for Aero Engine, Northwestern Polytechnical University, Ministry of Education, Xi'an 710072, People's Republic of China
  • 收稿日期:2021-01-14 修回日期:2021-03-10 出版日期:2021-09-25 发布日期:2021-09-13
  • 通讯作者: Chang-Feng Yao E-mail:chfyao@nwpu.edu.cn
  • 基金资助:
    This work was funded by the National Natural Science Foundation of China (Grant Nos. 51875472, 91860206, and 51905440), the National Science and Technology Major Project (Grant No. 2017-VII-0001-0094), the National Key Research and Development Plan in Shaanxi Province of China (Grant No. 2019ZDLGY02-03), and the Natural Science Basic Research Plan in Shaanxi Province of China (Grant No. 2020JQ-186).

Three-dimensional modeling and reconstructive change of residual stress during machining process of milling, polishing, heat treatment, vibratory finishing, and shot peening of fan blade

Ji-Yin Zhang1,2, Chang-Feng Yao1,2, Min-Chao Cui1,2, Liang Tan1,2, Yun-Qi Sun1,2   

  1. 1 Key Laboratory of High Performance Manufacturing for Aero Engine, Northwestern Polytechnical University, Ministry of Industry and Information Technology, Xi'an 710072, People's Republic of China;
    2 Engineering Research Center of Advanced Manufacturing Technology for Aero Engine, Northwestern Polytechnical University, Ministry of Education, Xi'an 710072, People's Republic of China
  • Received:2021-01-14 Revised:2021-03-10 Online:2021-09-25 Published:2021-09-13
  • Supported by:
    This work was funded by the National Natural Science Foundation of China (Grant Nos. 51875472, 91860206, and 51905440), the National Science and Technology Major Project (Grant No. 2017-VII-0001-0094), the National Key Research and Development Plan in Shaanxi Province of China (Grant No. 2019ZDLGY02-03), and the Natural Science Basic Research Plan in Shaanxi Province of China (Grant No. 2020JQ-186).

摘要: Residual stress during the machining process has always been a research hotspot, especially for aero-engine blades. The three-dimensional modeling and reconstructive laws of residual stress among various processes in the machining process of the fan blade is studied in this paper. The fan blades of Ti-6Al-4V are targeted for milling, polishing, heat treatment, vibratory finishing, and shot peening. The surface and subsurface residual stress after each process is measured by the X-ray diffraction method. The distribution of the surface and subsurface residual stress is analyzed. The Rational Taylor surface function and cosine decay function are used to fit the characteristic function of the residual stress distribution, and the empirical formula with high fitting accuracy is obtained. The value and distribution of surface and subsurface residual stress vary greatly due to different processing techniques. The reconstructive change of the surface and subsurface residual stress of the blade in each process intuitively shows the change of the residual stress between the processes, which has a high reference significance for the research on the residual stress of the blade processing and the optimization of the entire blade process.

The full text can be downloaded at https://link.springer.com/article/10.1007%2Fs40436-021-00351-4

关键词: Fan blade, Machining process, Surface residual stress, Subsurface residual stress, Three-dimensional modeling, Reconstructive change

Abstract: Residual stress during the machining process has always been a research hotspot, especially for aero-engine blades. The three-dimensional modeling and reconstructive laws of residual stress among various processes in the machining process of the fan blade is studied in this paper. The fan blades of Ti-6Al-4V are targeted for milling, polishing, heat treatment, vibratory finishing, and shot peening. The surface and subsurface residual stress after each process is measured by the X-ray diffraction method. The distribution of the surface and subsurface residual stress is analyzed. The Rational Taylor surface function and cosine decay function are used to fit the characteristic function of the residual stress distribution, and the empirical formula with high fitting accuracy is obtained. The value and distribution of surface and subsurface residual stress vary greatly due to different processing techniques. The reconstructive change of the surface and subsurface residual stress of the blade in each process intuitively shows the change of the residual stress between the processes, which has a high reference significance for the research on the residual stress of the blade processing and the optimization of the entire blade process.

The full text can be downloaded at https://link.springer.com/article/10.1007%2Fs40436-021-00351-4

Key words: Fan blade, Machining process, Surface residual stress, Subsurface residual stress, Three-dimensional modeling, Reconstructive change