What does the term "punching" refer to in metal fabrication?

The term "punching" in metal fabrication specifically refers to the creation of holes in sheet metal using a punch press. This process involves using a cutting tool (the punch) to shear out a slug of material from the sheet, forming a hole of the desired shape and size. Punching is commonly used in manufacturing for producing holes needed for various applications such as fastening, drainage, or ventilation.

This method is efficient for mass production as it allows for quick and precise hole creation, often with minimal waste. The use of a punch press can also facilitate the punching of multiple sheets simultaneously, depending on the thickness and type of material, thereby increasing productivity. The precision and repeatability of the punch press make it a preferred method in the industry for creating consistent hole patterns and shapes.