Blanking

Blanking in metal is a metal fabrication process in which a punch and die are used to cut out a portion of a metal sheet, creating a finished piece, known as a blank, in one clean operation. The blank is the desired part, while the remaining metal sheet is considered scrap or can be used for other processes. This method is widely used in industries requiring mass production of metal components because it is fast, efficient, and cost-effective for producing large quantities.

How Blanking Works:

1. Sheet Material: A sheet or coil of metal (such as steel, aluminum, or copper) is placed between the punch and die.
2. Punching Action: A punch presses down with force, shearing the material along the edges of the die. The punch cuts the metal into the desired shape, which drops through the die.
3. The Blank: The part that is punched out is the blank. It is the desired product and can be further processed (e.g., bent, machined, or assembled). The leftover sheet, known as scrap, can sometimes be recycled or used for another process.