Solidification analysis of heat sink/chill effectiveness in of an aluminum alloy
Foundry Management and Technology
The capability of external chill in preventing hot tears ad shrinkage formation by accelerating the cooling rate in critical locations of aluminum permanant mold castings was investigated. An aluminum alloyA206 wheel comprising of a massive central hub, eight cross-sectioned spokes and rim was selected as the test casting for the study. Casting density distribution in the cross section of the hub area was used to qualitatively evaluate chill effectiveness in terms of internal porosity reduction. the results suggest that different degrees of reduction of porosity in shrinkage-prone areas may be possible by promoting sequential solidification in the PM castings of aluminum A-206.
Original Publication Date
Lerner, Yury S.; Kouznetsov, Vladimir E.; Panteleev, Gregory V.; and Berry, John T., "Solidification analysis of heat sink/chill effectiveness in of an aluminum alloy" (2005). Faculty Publications. 2965.