How Do They Make Expanded Metal Sheets

The sheets coils are fed into the expanding machine and the precision die cuts and stretches the metal in a single operation.

How do they make expanded metal sheets. Expanded metal is produced by an expanding machine which turns solid metal sheets and coils into an expanded metal mesh. It is commonly used for fences and grates and as metallic lath to support plaster or stucco description. To create expanded metal sheet metal is passed through a device called an expanding machine which is similar to a plate rolling machine but fitted with cutting edges that punch holes into the metal plate as it passes through the machine. Expanded metal is manufactured through slitting and stretching by a set of die with upper blade and lower blade while the diamonds may vary and this drawing just shows how a solid metal sheet becomes expanded metal without waste.

Because no metal is lost in the expanding process expanded metal is cost effective and saves energy by conserving material and allowing the fabrication to go further and do more. The expanding machine is fitted with a knife which determines pattern for the mesh. Micro expanded metal is widely used as filter screening and covering in medical automotive industries with good ventilation filter and protect properties. Raised expanded metal is flattened by a rolling mill and then comes into flattened expanded metal.

Expanded metal is a type of sheet metal which has been cut and stretched to form a regular pattern often diamond shaped of metal mesh like material. To produce expanded metal a sheet or plate is simultaneously slit and stretched. As the metal is fed through the expanding machine it is cut and stretched simultaneously using a pressured slitting and stretching process.