STRAIN DISTRIBUTION IN COGGING PROCESS OF INGOTS WITH INTERNAL DISCONTINUITIES

Authors

  • Paweł Chyla
  • Aneta Łukaszek-Sołek
  • Jan Sińczak

DOI:

https://doi.org/10.7494/mafe.2009.35.2.87

Keywords:

effective strain distribution, cogging process, numerical calculations

Abstract

In this paper is presented analysis of cogging process of the 16 Mg ingot in the three-dimensional state of deformation, using commercial program QForm 3D to valuate effective strain distribution. Additionally voids closing were analysed, which were purposely inserted (various diameters and shapes) in selected areas. Numerical calculations were carried out for two following processes: upsetting of the reforged ingot and cogging process. Cogging operation of reforged material was simulated according to two schedules from the head and the bottom side of the ingot. As a criterion of valuation of the cogging process with flat dies were accepted maps of effective strain distribution.

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References

Krzekotowski Z.: Technologia kucia swobodnego i półswobodnego, Wyd. Śląsk, Katowice, 1964

Banaszek G., Stefanik A., Dyja H., Berski S., Janik M.: Modelowanie komputerowe i laboratoryjne procesu zamykania wad pochodzenia metalurgicznego we wlewkach podczas kucia swobodnego na gorąco, Rudy i Metale Nieżelazne, 48 (2003) 10-11, 512-517

Banaszek G., Stefanik A.: Wpływ asymetrii obciążenia zewnętrznego na zamykanie wad metalurgicznych podczas kucia swobodnego na gorąco, Hutnik - Wiadomości Hutnicze, 71 (2004) 9, 468-475

Banaszek G., Mróz S.: Modelowanie numeryczne procesu zamykania wad metalurgicznych podczas kucia swobodnego na gorąco w kowadłach wypukłych, Hutnik - Wiadomości Hutnicze, 72 (2005) 7-8, 383-388

Chyła P.: Rozkład odkształceń w procesie wydłużania swobodnego, AGH, Kraków, 2008 (praca magisterska, nie publikowana)

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Published

2009-12-31

How to Cite

Chyla, P., Łukaszek-Sołek, A., & Sińczak, J. (2009). STRAIN DISTRIBUTION IN COGGING PROCESS OF INGOTS WITH INTERNAL DISCONTINUITIES. Metallurgy and Foundry Engineering, 35(2), 87. https://doi.org/10.7494/mafe.2009.35.2.87

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