Chill C

In Feature C, the clevises on the side walls hold the bearings which support attachment rods.

The clevises have a high strength requirement -- 60 ksi ultimate tensile stress and 40 ksi yield stress.

It is important to produce rapid solidification in the clevis sections, which are 0.25 inches thick.

Chill blocks are placed in the cores to line up with the clevises. The chill blocks produce the required rapid heat transfer and controlled solidification and microstructure.

Feature C does need a chill.
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