Sheet Metal Classification
There are 3 major classes of processes of sheet metal working.
Cutting: Cutting is the use of shearing forces to remove material from a work piece. Technically not a metal forming process, but of extreme industrial importance.
Bending: Bending is the forming of a sheet metal work about an axis.
Deep Drawing: Deep drawing is the forming of a cup or box with a flat base and straight walls, from a sheet metal blank.
Other Processes: Other sheet metal working processes such as ironing, spinning, rubber forming and high energy rate forming are also discussed in latter sections.