Assembly
Component or end item comprising of a number of parts or subassemblies put together to perform a specific function and capable of disassembly without destruction.
Blanking
Mechanical process of cutting, punching, or shearing of a piece of metal into a desired shape.
Brazing
Method of joining pieces of metal by heating them with a flame and using a non-ferrous (commonly brass) filler having a melting point below that of the metals being joined. It is similar to soldering but requires much higher temperature, up to 900°C (1650°F).
Extruding
Method in which a softened blank of a metal material is forced through a shaped metal piece or die to produce a continuous ribbon of the formed product.
Finishing
Treating a surface with machining or polishing. Finish includes brightness, color (hue), and texture (smoothness).
Heat treating
Heating metal to a certain temperature and then cooling in a particular manner to alter its internal structure for obtaining desired degree of physical and mechanical properties such as brittleness, hardness, and softness.
Plating
Process in which metal is deposited on a metallic surface.
Rust proofing
Coating with a substance that prevents rusting.
Stamping
Forming metal coils or strips into shapes (blanks, embosses, and bends, for example) using a press (a single operation or a series of stages).
Swaging
Altering the dimensions of an item using dies into which the item is forced.
Welding
Joining together (metal pieces or parts) by heating the surfaces to the point of melting using a blowtorch, electric arc, or other means, and uniting them by pressing or hammering, for example.
Source: BusinessDictionary.com