Piercing & Blanking

PIERCING:
A shearing operation that creates an open hole in sheet metal by separating an interior section. The removed metal section is discarded scrap.
For piercing holes in stock, the size of the pierce punch governs the size of the hole and clearance is applied to the die.


BLANKING:
A shearing operation that creates a hole in sheet metal by separating an interior section. The removed piece of metal is the desired part.
For blanking the die size governs the size of the blanked component and clearance is applied to the punch.

Blanking and Piercing image