Foundry Mold and Coremakers — Tasks

Task statements

• Cut spouts, runner holes, and sprue holes into molds.
• Tend machines that bond cope and drag together to form completed shell molds.
• 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.
• Rotate sweep boards around spindles to make symmetrical molds for convex impressions.
• Pour molten metal into molds, manually or with crane ladles.
• Operate ovens or furnaces to bake cores or to melt, skim, and flux metal.