Whether you're going to do the work yourself, or just want a little slang to throw around to sound like you know what the guys at the shop are talking about, you need to check out this list of metalworking terms from Ed Barr in Professional Sheet Metal Fabrication.
Annealing - the process of heating metal to a specific point to effect change in the microstructure of the metal, often undertaken to restore ductility to metal that is stiff from work (work-hardened).
Body hammer - a hammer specifically designed for automotive body repair. Typically, large versions are "bumping hammers," small versions are "dinging" hammers, and hammers that combine a striking face with a pointed or chisel-face are "combination" hammers.
Body solder - solder designed specifically for auto body repair. A common composition is 30% Tin and 70% Lead.
Buck - a foam, wood, or wire three-dimensional representation of an anticipated sheet metal project that is used as a guide during shaping.
Bull's-eye pick - an archaic hand-held auto body tool that utilizes a long swing arm to remove dents from automotive panels by hitting them from the backside.
Cleco - a spring-loaded, temporary rivet. Commonly used in the aircraft industry.
Cold-shrink - to shorten and thicken a spot on a sheet metal panel by striking it with a hammer without the use of heat to soften the panel.
Cold-working - hammering, bending, or manipulating metal without heat so that the metal is plastically deformed.
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