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Metalworking — Machining a bar of metal on a lathe. Metalworking is the process of working with metals to create individual parts, assemblies, or large scale structures. The term covers a wide range of work from large ships and bridges to precise engine parts… … Wikipedia
Welding — is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld puddle ) that cools to… … Wikipedia
Taxonomy of manufacturing processes — This tree lists various manufacturing processes arranged by similarity of function.#Casting ##Sand casting ##Plastic mold ##Shell mold ##Investment casting (lost wax, precision) ##Permanent mold ##Centrifugal casting ##Die casting ##Slush or… … Wikipedia

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