Advances in Manufacturing ›› 2023, Vol. 11 ›› Issue (4): 587-600.doi: 10.1007/s40436-023-00440-6

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Alternative flexible correction forming of a blade: multipoint correction with surface measurement and deformation simulation

Da-Wei Zhang, Wen-Long Gao-Zhang, Qi Zhang   

  1. Xi'an Key Laboratory of Intelligent Equipment and Control, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
  • Received:2022-03-22 Revised:2022-10-02 Published:2023-10-27
  • Contact: Da-Wei Zhang,E-mail:zhangdawei2000@mail.xjtu.edu.cn E-mail:zhangdawei2000@mail.xjtu.edu.cn
  • Supported by:
    This work was supported in part by the Fundamental Research Funds for the Central Universities (Grant Nos. xtr012019004 and zrzd2017027) and the Shaanxi Province Key Research and Development Projects (Grant No. 2021GXLH-Z-049).

Abstract: Distortion during the forging or machining processes of a blade causes problems in subsequent manufacturing. This paper proposes an alternative multipoint correction method integrated with blade measurement, determination of correcting parameters, and adjustment of the correcting die. An iterative algorithm for determining the correcting parameters is proposed. Measuring equipment combining a laser displacement sensor with multipoint flexible support is manufactured to measure the blade shape. Multipoint correcting equipment with an adaptive lower die and rapid adjustment is manufactured, and software is developed for data analysis and equipment control. The correction experiment for a rough-machined steam-turbine blade indicates that the correcting parameters can be determined after one modification based on numerical simulation, and that a rough blade that meets the allowance for finish machining can be obtained using the determined correction parameters.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-023-00440-6

Key words: Blade, Surface measurement, Numerical simulation, Multipoint correction