Notching
Punching the edge of a sheet, forming a notch in the shape of a portion of the punch.
Perforating
Punching a close arrangement of a large number of holes in a single operation.
Nibbing
Punching a series of small overlapping slits or holes along a path to cut-out a larger contoured shape.
Embossing
Certain designs are embossed on the sheet metal.
Punch and die are of the same contour but in opposite direction.
Shaving
Shearing away minimal material from the edges of a feature or part using a small die clearance. Used to improve accuracy or finish. Tolerances of ±0.025 mm are possible.
Cutoff
Cutoff - Separating a part from the remaining sheet, without producing any scrap. The punch will produce a cut line that may be straight, angled, or curved.