Sheet metal punching

Sheet metal punching machines use punches to punch out holes in sheets of metal. These punches are guided by the dies, which are located on the opposite side of the sheet metal. The punches push through the sheet metal, and the dies ensure the non-breaking of the metal. A process that allows realizing sheet and metal pieces of any shape and design. Depending on the needs, the shapes can be designed using CAD software.

Almost all metals can be punched. Iron punching, stainless steel punching, and aluminum punching are the most popular ones. Copper, brass, and special alloy punching are also possible. Sheet metal punching allows you to cut, shape and form sheets of metal. You can punch them to create holes, shapes, patterns, embossing, and engraving. Punching is a very useful technique for engineers, designers, manufacturers, craftsmen, and hobbyists.

Punching quality

The quality depends on several factors, including:

  • The size and shape of the die and punch presses;
  • The amount of force applied;
  • The condition of the dies and punches;
  • The thickness of the metal; and
  • The type of metal.

When punching a round hole, the minimum diameter of the holes should be larger than the metal thickness. For particularly sturdy metal alloys, however, the size of the holes may need to be even bigger than what is stated here.

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