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Comparison of numerical simulation models for predicting temperature in solidification analysis with reference to air gap formation
- Kron, J. (author)
- Bellet, M. (author)
- Ludwig, A. (author)
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- Pustal, B. (author)
- Wendt, J. (author)
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- (creator_code:org_t)
- 2013-07-18
- 2004
- English.
- In: International Journal of Cast Metals Research. - : Maney Publishing. - 1364-0461 .- 1743-1336. ; 17:5, s. 295-310
- Journal article (peer-reviewed)
Abstract
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- As a result of its influence on heat transfer between cast part and mould, air gap formation is an important problem for many casting processes. The general explanation for gap formation is that, as a result of stresses and distortions that are created from inhomogeneous cooling, shrinkage of the casting and expansion of the mould occur. In this paper, different thermomechanical approaches are applied to a well defined casting process using three commercial and one in-house codes and their predictions are compared with experimental findings. The experimental data were obtained from the solidification and subsequent cooling of cylindrical castings of eutectic Al-13% Si and ternary Al-7% Si-0.3% Mg alloys. Based on these findings, the major differences between the predictions of the models and the actual formation of the air gap are discussed.
Keyword
- solidification
- stress-strain analysis
- air gap formation
- numerical modelling
- finite elements
- coupled problems
- benchmark exercise
- heat-transfer coefficient
- si alloy
- al-si
- mold
Publication and Content Type
- ref (subject category)
- art (subject category)
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