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Complex Foamed Aluminum Parts as Permanent Cores in Aluminum Castings

Published online by Cambridge University Press:  10 February 2011

F. Simančík  and
F. Schoerghuber
F. Simančík
Affiliation:
Institute of Materials & Machine Mechanics, Račianska 75, SK-830 08 Bratislava 38, Slovak Republic, simancik@umms.savba.sk
F. Schoerghuber
Affiliation:
Illichmann GmbH, A-4813 Altmfinster, Austria
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Abstract

The feasibility of complex shaped aluminum foam parts as permanent cores in aluminum castings has been investigated. The foamed samples were prepared by injection of the foam into sand molds. It turned out that sound castings can be produced if the foam core is properly preheated and/or surface treated before casting. The effect of the foam core on the performance of the casting was evaluated by in compression testing and by measuring structural damping. The gain in the related properties turned out to be much higher than the weight increase of the casting due to the presence of the core. The weight increase may be partially offset through a reduction of the wall-thickness of the shell.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 521: Symposium R – Porous & Cellular Materials for Structural Applications , 1998 , 151
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1. Simandik, F., Kováčik, J. and Schoerghuber, F. in Metalschäume. edited by J. Banhart (Proc. Symposium Metallschäume Bremen, 6.-7.3.1997) pp. 171–176.Google Scholar