Sheet Metal Stamping Parts

Bending – the material is deformed or bent along a straight line
Flanging – the material is bent along a curved line.
Embossing – the material is stretched into a shallow depression. Used primarily for adding decorative patterns. See also Repoussé and chasing.
Blanking – a piece is cut out of a sheet of the material, usually to make a blank for further processing.
Coining – a pattern is compressed or squeezed into the material. Traditionally used to make coins.
Drawing – the surface area of a blank is stretched into an alternate shape via controlled material flow. See also deep drawing.
Stretching – the surface area of a blank is increased by tension, with no inward movement of the blank edge. Often used to make smooth auto body parts.
Ironing – the material is squeezed and reduced in thickness along a vertical wall. Used for beverage cans and ammunition cartridge cases.
Reducing/Necking – used to gradually reduce the diameter of the open end of a vessel or tube.
Curling – deforming material into a tubular profile. Door hinges are a common example.
Hemming – folding an edge over onto itself to add thickness. The edges of automobile doors are usually hemmed