spruing

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Lost-wax casting — A model of an apple in wax … Wikipedia
sprue — sprue1 /sprooh/, n., v., sprued, spruing. n. 1. Metall. a. an opening through which molten metal is poured into a mold. b. the waste metal left in this opening after casting. 2. Metalworking. a channel in a forging die permitting the die to clear … Universalium
rodding — The process of attaching wax rods to the surface of a wax model in lost wax casting. The rods form the runners and the risers in the mold. In some regions a rod is called a sprue, and rodding is called spruing … Glossary of Art Terms
sprue — In lost wax casting, a channel through which molten metal can enter a mold (runners) and air and gas can escape (risers). This term applies to the wax rods attached to the wax model that result in the formation of these channels, and for the… … Glossary of Art Terms

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