Expanded metal mesh is manufactured from solid sheets/coils of stainless steel, aluminum, carbon steel or other alloys that can be expanded.
The sheets/coils are fed into the expanding machine, and the precision die cuts and stretches the metal in a single operation. Then the material is sheared and stretched into a particular pattern with uniform opening sizes. In the finished product, the strands form openings which allow free passage of air, sound, liquid and heat while offer impenetrable barrier to large solid objects or human bodies.
The metal sheet can be expanded up to ten times its original width, and the final product is lighter per meter and stronger per kilogram than its original sheet. No material is lost in the manufacturing process.
The expanded metal mesh won't unravel because of its strong material properties. Even if the finished metal sheet is cut at one or more points, the remaining strand intersections can hold the sheet together.
Five steps in the manufacturing process
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