Precision Pierced Blanks

Preparing a sheet metal blank from coils, strips, or sheets by a cutting operation is the first step in the production of most sheet metal parts. When the piece of sheet metal cut from stock is to become the manufactured part, the piece is called the blank or workpiece, and the process is known as blanking.

Piercing consists of cutting a hole in metal. As opposed to punching, it does not generate a slug. Instead, the metal is pushed back to form a jagged flange on the back side of the hole. A pierced hole looks somewhat like a bullet hole in a sheet of metal.

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