roll cogging

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Forging — This article is about the metalworking process. For specific hot forging hearth, see forge. For the act of counterfeiting, see forgery. Hot metal ingot being loaded into a hammer forge Forging is a manufacturing process involving the shaping of… … Wikipedia
Rolling (metalworking) — A rolling schematic In metalworki … Wikipedia
cog — cog1 /kog, kawg/, n., v., cogged, cogging. n. 1. (not in technical use) a gear tooth, formerly esp. one of hardwood or metal, fitted into a slot in a gearwheel of less durable material. 2. a cogwheel. 3. a person who plays a minor part in a large … Universalium

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