AFS Library


Journal: Transactions of the American Foundrymen's Society V 70 P 1029-1039, 1962 (11 p)
Author: Flemings, M C, Mollard, F R, Miiyama, E F and Taylor, H F

Research conducted in the course of a 3 1/2-year fundamental research program on fluidity of aluminum alloys is briefly summarized. Detailed results are reported of work conducted on (1) effects of surface tension and vibration on the ability of metal to enter small diameter holes (0.02 to 0.20 in. diameter) and (2) effects of heat losses in gating systems on fluidity. Vibration is shown to be an effective method of increasing the ability of metal to enter small diameter channels (less than 0.10 in. diameter); it has relatively little effect in larger test channels. Vibration must be applied in such a way that it increases effective metal head. Calculation and experiment indicate that temperature losses in gating systems are generally negligible in practice.

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