Model and Mold Makers, Jewelry

Make models or molds to create jewelry items.

Job Task

• Carves, chisels, scrapes, and files plaster, wax or other plastic materials to make mold or model, according to design specifications.
• Fits, secures, and solders halves of molds together and drills holes in mold to attach handles and allow gases to escape during casting.
• Lays out design on metal stock and cuts along markings to fabricate pieces used to cast metal molds.
• Builds sand mold in flask, following pattern, and heats flask using furnace or torch to dry and harden mold.
• Cuts design in mold or other material to be used as model to fabricate metal and jewelry products.
• Constructs preliminary model of wax, metal, clay or plaster, forms sample casting in mold, and measures casting to verify dimensions.
• Mixes or melts clay, metal, plaster, wax or other material and pours material into mold to cast model or mold.
• Examines and measures metal parts for conformance to design specifications on scale drawing.
• Writes or modifies design specifications, such as content, weight, and material to be used to cast article.
• Presses model into clay and builds up clay around exposed parts of model to retain plaster.
• Removes mold from cast article, cleans mold, and applies shellac and dry powder to preserve mold for reuse.
• Polishes metal surfaces and products, using abrasive wheel.
• Modifies, sharpens, repairs or fabricates jigs, fixtures, and hand tools, such as scrapers, cutter, gougers, and shapers.
• Computes cost of labor and material to determine production cost of products and articles.

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