Application of numerical simulation systems for the research of the blade casting process in blank production

Abstract


The article focuses on the analysis of the results of computer simulation of the process of casting the turbine blade 24.400.538-1, including prediction of occurrence of casting defects. Engineering calculations have been carried out to model the stress-strain state of the casting during solidification and after the knockout of the casting from the mold. The internal structure of the casting was analyzed for the presence of microporosity. The analysis of the results of modeling the process of grain formation in the casting made it possible to predict the size and direction of grain growth in the casting during its crystallization. Thus, on the basis of in-depth research of the group technology of a complex representative of the most loaded turbine blade and the one most difficult to produce local places of occurrence of casting defects were identified and predicted taking into account the obtained results of simulating the casting process. This made it possible to reduce the amount of defects at the stage of actual production by 8% on the average.


About the authors

V. G. Smelov

Samara State Aerospace University

Author for correspondence.
Email: pdla_smelov@mail.ru

Russian Federation

Candidate of Science (Engineering)

Associate professor

R. A. Vdovin

Samara State Aerospace University

Email: vdovin.ssau@gmail.com

Russian Federation

Post-graduate student

A. V. Agapovichev

Samara State Aerospace University

Email: agapovichev5@mail.ru

Russian Federation

Post-graduate student

References

  1. Balyakin, A.V., Smelov V.G., Chempinsky L.A. Additive technology application details of combustion. Vestnik of the Samara State Aerospace University. 2012. No. 3(34), part 2. P. 47-52. (In Russ.)
  2. Vdovin R.A., Smelov V.G. Multiproduct manufacture process improvement. Izvestiya Samarskogo nauchnogo tsentra RAN. 2013. V. 15, no 6(3). P. 612-619. (In Russ.)
  3. Smelov V.G., Vdovin R.A., Golanov S.P. Analysis of results of computer simulation of the casting process. Applied Mechanics and Materials. 2015. V. 770. P. 223-228. doi.org/10.4028/www.scientific.net/amm.770.223
  4. Vdovin R.A., Smelov V.G. Elaboration of a casting defects prediction technique via use of computer-aided design systems. International. Journal of Engineering and Technology. V. 6, Iss. 5. P. 2269-2275.

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