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| Performance Oriented Machining Error Analysis and Statistic of Compressor Blade |
| CONG Jingmei1,2, MO Rong1, WU Baohai1, HOU Yaohua1 |
(1. Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education,
Northwestern Polytechnical University, Xi’an 710072, China;
2. AECC Shenyang Engine Design Institute, Shenyang 110015, China) |
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Abstract Aiming to improve the machining quality of compressor blade of aeroengine, the influencing factors of
blade machining are analyzed, including processing plan and geometric modeling before machining, the problems of deformation
and stability during machining, the residual stress after machining. For the inevitable existence of machining error,
the probability statistics method is presented in the paper. In detail, the statistical analysis method of contour error and
airfoil parameters error in the key region of blade is established. With the help of aerodynamic experiments, the error distribution
of the key parameters under stable condition is found to provide the theoretical basis for guiding the specific blade
processing.
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2017, 
