The most common method of perforating metal uses a rotary pinned perforation roller. This is 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.Jun 20, 2016
What is the difference between expanded metal and perforated metal?
Much like expanded metal, perforated metal is produced through piercing the material with bespoke tooling to offer an array of shapes such as circles, squares and diamonds. However, unlike expanded metal, perforated metal is punched and not stretched and therefore produces waste material.Jun 10, 2019
Is perforated metal strong?
Perforated Metal Strength The strongest pattern for perforated metals is round holes that are staggered at 60o, which provides strength and a wide range of open area. Using an engineering formula, design engineers calculate the strength of perforated material compared to solid material.