Manufacturing Materials and Processes

Flat Rolling Correct Answers production of a flat plate, sheet, and foil at high speeds, good surface finish, high capital invest, low labor cost Shape Rolling Correct Answers production of various structural shapes such as I beams and trails at high speed, requires shaped rolls and expensive equipment, low labor cost Forging Correct Answers production of discrete parts with a set of dies, requires finishing operations, performed at elevated temperatures Extrusion Correct Answers production of long lengths of solid or hollow shapes with constant cross section and product is then cut into desired lengths, cold extrusion is used to make discrete products Drawing Correct Answers production of long rod and wire with varying cross sections, good surface finish Sheet-metal forming Correct Answers production of a wide variety of shapes with thin walls and complex geometries Powder Metallurgy Correct Answers the compaction of powders into a "green" form that is mechanically interlocked, followed by a high temperature diffusion temperature diffusion treatment that consolidates the powders into component form cores Correct Answers provide a hollow center and centered with chaplets chaplets Correct Answers provide stability in the core shell molding Correct Answers using thin shell of ceramic over the mold