A Design Study in Austempered
Ductile Iron - Smith Foundry Drive Wheel
Final
Mold Design
Top Half (Cope) of the Match Plate Pattern
Bottom Half (Drag) of the Match Plate Pattern
The photos above show the top and bottom
halves of the match plate pattern.
The patterns are machined out of
urethane plastic block. The urethane patterns wear better
than wood and are less expensive than aluminum. The urethane
patterns can also be easily modified by back-filling and
machining.
The urethane patterns
are attached to the aluminum match plate.
The top and bottom halves
of the mold are formed
by packing green sand around the match plate in the metal mold boxes.