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A Design Study in Austempered Ductile Iron - Smith Foundry Drive Wheel

Design A - Two Risers on the Rim

The two cone-shaped risers on the sides of the wheel will feed metal into the rims, the spokes, and the center hub during solidification.

  • The molten metal is gated into the  two risers which feed into the rims of the casting.

  • The risers will also act as heat reservoirs to keep the rim and spokes molten as the center hub solidifies. 

  • The risers can also be easily cut from the rim, with reduced grinding and finishing at the cut-off points. 

The two risers on the rim are the best design.
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Copyright 2005 by the American Foundry Society. All rights reserved.
Address Comments to: jss@afsinc.org
Last Modified:May, 2005 by STG

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