Journal of Intelligent Manufacturing

, Volume 28, Issue 6, pp 1409–1419 | Cite as

Design and optimization of turbine blade preform forging using RSM and NSGA II

  • S. H. R. Torabi
  • S. Alibabaei
  • B. Barooghi Bonab
  • M. H. Sadeghi
  • Gh. Faraji


Forging is one of the production methods of turbine blades. But, because of the complexities of the blades, they cannot be produced in one stage and using preforms is necessary. In this paper, an extruded elliptical cross section was considered as blade preform, then response surface method and multi-objective genetic algorithm was used to optimize this preform. Maximum filling ratio of the final die and minimum flash volume, forging force and strain variance of final blade were considered as objectives of optimization. Design Expert software was used for design of experiment and optimization. Also Deform-3D software was applied to simulate the forging process. The optimized preform was compared with the preform resulted from conventional preform designing method. Results show that optimization method gives better results than conventional method. Also physical modeling was used for verification of simulation results. Results show simulation results have a good corresponding with experimental results.


Forging of turbine blades Preform optimization Response surface method Multi-objective optimization 


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • S. H. R. Torabi
    • 1
  • S. Alibabaei
    • 1
  • B. Barooghi Bonab
    • 2
  • M. H. Sadeghi
    • 3
  • Gh. Faraji
    • 1
  1. 1.School of Mechanical Engineering, College of EngineeringUniversity of TehranTehranIran
  2. 2.Mechanical Engineering DepartmentShahid Rajaee UniversityTehranIran
  3. 3.Mechanical Engineering DepartmentTarbiat Modares UniversityTehranIran

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