MODELLING OF MICROSTRUCTURE DEVELOPMENT IN FORGING OF A WINDMILL SHAFT

Authors

  • Jan Sińczak Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Cracow, Poland,
  • Maciej Pietrzyk Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Cracow, Poland
  • Piotr Skubisz Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Cracow, Poland
  • Aneta Łukaszek-Sołek Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Cracow, Poland

DOI:

https://doi.org/10.7494/mafe.2006.32.1.11

Keywords:

open-die forging, upsetting, cogging, static recrystallization, grain growth

Abstract

The paper presents the results of investigation of microstructure evolution in hot-deformed steel in the process of forging of large forgings. Using a forging of a windmill main shaft as an example, description of the technological process is presented, focused on phenomena occurring in the microstructure during hot-forging. Investigation of the microstructure during and after forging of a shaft was made. The results of theoretical calculation of microstructure evolution during subsequent stages of production cycle are based on temperature changes plots derived from industrial practice. Simulation of microstructure evolution allowed plotting changes of grain size and recrystallized volume fractions versus time during forging and reheating operations.

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References

SińczakJ., Łukaszek-SołekA., Skubisz P.: Numerical Modelling of Ingot Stretch Forming in Flat Dies. Hutnik - Wiadomości Hutnicze, 71 (2004) 10, 504-509

SińczakJ., Łukaszek-SołekA., Bednarek S.: Spęczanie segmentowe kołnierzy dużych wałów. [Segmental upsetting of big haft flance]. Hutnik - Wiadomości Hutnicze (2005) 10, 500-504

Sellars CM.: Modelling Microstructural Development During Hot Rolling. Mat. Sci. Techn., 6 (1990), 1072-1081

Sellars CM.: Physical Metallurgy of Hot Working. Hot Working and Forming Processes, Sellars CM., Davies GJ. (eds), The Metals Soc, London, 1979, 3-15

Sellars, CM.: Whiteman, J.A., Recrystallization and Grain Growth in Hot Rolling, Met. Sci., 13 (1979), 187-194

Hodgson P.D., Gibbs R.K.: A Mathematical Model to Predict the Mechanical Properties of Hot Rolled C-Mn and Microalloyed Steels. ISIJ Int., 32 (1992), 1329-1338

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How to Cite

Sińczak, J., Pietrzyk, M., Skubisz, P., & Łukaszek-Sołek, A. (2013). MODELLING OF MICROSTRUCTURE DEVELOPMENT IN FORGING OF A WINDMILL SHAFT. Metallurgy and Foundry Engineering, 32(1), 11. https://doi.org/10.7494/mafe.2006.32.1.11

Issue

Vol. 32 No. 1 (2006)

Section

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