Foundry Mold and Coremakers: Career & Application Guide

What do foundry mold and coremakers do?

Make or form wax or sand cores or molds used in the production of metal castings in foundries.

This describes a U.S. occupation, not a live vacancy. Individual employers may use different titles and requirements.

O*NET reports these titles for this occupation. Compare the responsibilities in each posting before treating titles as equivalent.

Clean and smooth molds, cores, and core boxes, and repair surface imperfections.
Sift and pack sand into mold sections, core boxes, and pattern contours, using hand or pneumatic ramming tools.
Position patterns inside mold sections, and clamp sections together.
Position cores into lower sections of molds, and reassemble molds for pouring.
Sprinkle or spray parting agents onto patterns and mold sections to facilitate removal of patterns from molds.
Form and assemble slab cores around patterns, and position wire in mold sections to reinforce molds, using hand tools and glue.
Move and position workpieces, such as mold sections, patterns, and bottom boards, using cranes, or signal others to move workpieces.
Lift upper mold sections from lower sections, and remove molded patterns.
Cut spouts, runner holes, and sprue holes into molds.

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