Tolerance-constrained inverse design of ceramic core configuration for precision wall thickness control in hollow turbine bladesOA
Wall thickness deviation significantly diminishes the durability and efficiency of turbine blades.It primarily results from surface deformation and positional shifts of the ceramic core during casting,which disrupts core-shell alignment.A novel reverse adjustment method for ceramic core positions within turbine blades based on the measurement of a batch of blades was proposed in this work.Initially,the optimal position solution model for internal ceramic cores of turbine blades on the basis of industrial computed tomography(ICT)scanning was established.Subsequently,a reverse adjustment method was developed to optimize the position and orientation of ceramic cores within the blade interior.The proposed method was verified through casting experiments,revealing a reduction of 45.5%in the maximum wall thickness error of the adjusted blades compared to their initial condition.The wall thickness error at the leading and trailing edges of the blade is reduced to less than±0.15 mm,while the wall thickness error on the concave and convex surfaces is minimized to less than±0.2 mm,which essentially satisfies the prescribed wall thickness tolerance requirements.The process system for precise shape control of hollow turbine blade wall thickness is further refined,providing robust technical support for enhancing the conformity rate of hollow turbine blade wall thickness dimensions.
Zi-chun Wang;Wen-hu Wang;Kang Cui;Rui-song Jiang;Rui-zhe Dong;Yuan-bin Wang
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,China Engineering Research Center of Advanced Manufacturing Technology for Aero Engine,Ministry of Education,School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China State Key Laboratory of Cemented Carbide,School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,ChinaKey Laboratory of High-Performance Manufacturing for Aero Engine,Ministry of Industry and Information Technology,School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China Engineering Research Center of Advanced Manufacturing Technology for Aero Engine,Ministry of Education,School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China State Key Laboratory of Cemented Carbide,School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,ChinaSchool of Automation and Software Engineering,Shanxi University,Taiyuan 030006,ChinaSchool of Mechanical Engineering,Sichuan University,Chengdu 610065,ChinaKey Laboratory of High-Performance Manufacturing for Aero Engine,Ministry of Industry and Information Technology,School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China Engineering Research Center of Advanced Manufacturing Technology for Aero Engine,Ministry of Education,School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China State Key Laboratory of Cemented Carbide,School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,ChinaKey Laboratory of High-Performance Manufacturing for Aero Engine,Ministry of Industry and Information Technology,School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China Engineering Research Center of Advanced Manufacturing Technology for Aero Engine,Ministry of Education,School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China State Key Laboratory of Cemented Carbide,School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China
矿业与冶金
hollow turbine bladetolerance-constrainedwall thickness controlreverse adjustmentmodel alignment
《China Foundry》 2026 (4)
P.599-612,14
the financial support of the National Natural Science Foundation of China(Grant No.52005311)the Research Project Supported by Shanxi Scholarship Council of China(Grant No.2023-003)。
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