HOW IS PERFORATED METAL MADE?

1.What Is Perforated Metal?
Perforated metal is a form of sheet metal which has been punched or stamped with a machine to create a pattern of holes. It is also known as perforated sheet, perforated plate, or perforated screen and is commonly made from stainless steel, cold rolled steel, aluminum and more
2.How Is Perforated Metal Made?
The manufacturing process for perforating metal starts with sheet metal. Sheet metal is thin and flat, and can be cut and bent into different shapes. In North America, the thickness of the sheet metal is specified in gauges; the larger the gauge number, the thinner the metal. In the rest of the world, sheet metal thickness is simply measured in millimeters.The most common method of perforating metal uses a rotary pinned perforation roller. This’s a large cylinder with sharp, pointed needles on the outside to punch holes into the metal. As the sheet metal is run across the perforation roller, it rotates, continuously punching holes in the passing sheet. The needles on the roller, which can produce a wide variety of hole sizes, are sometimes heated to simultaneously melt the metal which forms a reinforced ring around the perforation.Another common method is “die and punch” perforating. During this process, a sheet with needles is repeatedly pressed onto the passing metal which punches holes into the sheet. The pieces remaining from the punching are then sheared off and the surface is smoothed. The die and punch method is very efficient and can perforate a large surface of sheet very quickly.The most advanced method available is laser perforation. This process is very sophisticated and precise, but also the most expensive. Laser perforation produces results similar to rotary pinned perforation with hot needles, but maintains a higher level of consistency and control over the hole sizes and pattern.

3.Application

Perforated metals are very popular in contemporary architecture as they lend themselves to creative and unique designs. They also have a number of practical benefits:
Sun protection and climate control
Noise reduction
Balustrade screening panels
Food and beverage
Chemical and energy
Automotive

Material development

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