What does a Foundry Mold and Coremaker do?
Make or form wax or sand cores or molds used in the production of metal castings in foundries.
- Clean and smooth molds, cores, and core boxes, and repair surface imperfections.
- Move and position workpieces such as mold sections, patterns, and bottom boards, using cranes, or signal others to move workpieces.
- Sprinkle or spray parting agents onto patterns and mold sections to facilitate removal of patterns from molds.
- Position patterns inside mold sections and clamp sections together.
- Position cores into lower sections of molds, and reassemble molds for pouring.
- Sift and pack sand into mold sections, core boxes, and pattern contours, using hand or pneumatic ramming tools.
- Tend machines that bond cope and drag together to form completed shell molds.
- Cut spouts, runner holes, and sprue holes into molds.
- Lift upper mold sections from lower sections and remove molded patterns.
- Form and assemble slab cores around patterns and position wire in mold sections to reinforce molds, using hand tools and glue.
- Pour molten metal into molds, manually or using crane ladles.
- Rotate sweep boards around spindles to make symmetrical molds for convex impressions.
- Operate ovens or furnaces to bake cores or to melt, skim, and flux metal.