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New core technology for light metal casting

: Heuser, Michael; Weise, Joerg; Hilbers, Jennifer; Handels, Farina; Busse, Matthias

Volltext (PDF; )

Deutsche Gesellschaft für Materialkunde -DGM-:
LightMAT 2017, 2nd Conference & Exhibition on Light Materials - Science and Technology with the special Symposium ECAA. Online resource : 08. - 10. November 2017, Bremen, Germany
Online im WWW, 2017
2 S.
International Conference on Light Materials - Science and Technology (LightMAT) <2, 2017, Bremen>
European Conference on Aluminium Alloys (ECAA) <2017, Bremen>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IFAM ()

A new approach for lost cores for light-metal casting was developed based on the substitution of sand by hollow additions with specific compression strength. The suitability of phosphate, gypsum and cement binders for such cores was tested. Test parameters were the molding behavior of the cores, their bending strength, surface quality and easiness of demolding. The core behavior during the casting process was evaluated using aluminum casting experiments performed in permanent molds. Feasibility could be shown for phosphate and cement binders, the latter having a higher bending strength.