How Is Expanded Metal Made?

  1. Sheet metal is first placed through a rolling or expanding machine.
  2. Oscillating knife cuts the metal into an open mesh pattern.
  3. If flattened expanded metal is desired, then the expanded metal is cold-rolled through a flattener. With unflattened expanded metal, no secondary operation is performed and a louvered appearance remains.

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The video below shows you expanded metal being made:

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