Volume 30 Issue 1
Jan.  2015
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Article Navigation >  Journal of Aerospace Power  > 2015  >  30(1): 129-135
XIE Xiao-na, WANG Wen-hu, ZHANG Yan, WANG Yuan-bin. Optimization design of reverse deformation based on measuring results for investment cavity of turbine blade[J]. Journal of Aerospace Power, 2015, 30(1): 129-135. doi: 10.13224/j.cnki.jasp.2015.01.018
Citation: XIE Xiao-na, WANG Wen-hu, ZHANG Yan, WANG Yuan-bin. Optimization design of reverse deformation based on measuring results for investment cavity of turbine blade[J]. Journal of Aerospace Power, 2015, 30(1): 129-135. doi: 10.13224/j.cnki.jasp.2015.01.018
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Optimization design of reverse deformation based on measuring results for investment cavity of turbine blade

doi: 10.13224/j.cnki.jasp.2015.01.018

  • Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Education, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China

  • Received Date: 2013-12-20
  • Publish Date: 2015-01-28
    Abstract
  • As the trial and error method and the numerical simulation method have difficulty in accurately reflecting the deformation of the hollow turbine blade in the process of investment casting, a comprehensive compensation method of the reverse deformation based on the measuring result was prompted. Firstly, through inspection by three coordinates measuring machine (CMM) and statistical analysis of the investment blade sample, three kinds of deformation including shrinkage, torsion and bending of the blade body section were calculated, then a comprehensive compensation algorithm for the design of blade mold cavity based on the reverse deformation was established, in order to achieve optimization design of the investment cavity. Taking the tip section of the investment blade sample for example, the profile error of the blade body,the maximum error of leading edge,the maximum error of trailing edge decreased by 50%,68%,31%, compared with the uncompensated method. Finally the experiment results show that the method can effectively improve the forming precision, and precisely controll the shape of the hollow turbine blade.

     

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