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Expanded Metal, Perforated Metal, Welded Wire And Woven Wire Mesh

Nov. 19, 2021

The Expanded Metal for Building Facade in Israel

The Expanded Metal for Building Facade in Israel     

Our customers often ask us to explain the differences between materials to help them make an informed decision on the most suitable product for their application or project. A common question is: What is the difference between expanded metal, perforated metal, welded wire, and woven wire mesh?

 

In this blog, Ares Metal compares the characteristics of each product. Firstly, it is important to understand how each product is manufactured.


Expanded Metal Mesh

Expanded metal mesh is manufactured using a bespoke tool that simultaneously cuts and stretches material supplied from a coil or sheet (stainless steel, mild steel, aluminum, etc). This generates no waste and actually produces a higher yield of finished product than what is initially fed into the process. Expanded metal mesh is also homogeneous by design as it is a single piece of material with no weld breaks or wire wear.

 

The expanded metal mesh manufacturing process can produce a range of mesh patterns that are not limited to diamond shapes. The mesh strands are angled to give a three-dimensional appearance: this provides practical benefits including aesthetics (and is therefore very suitable for architectural and interior design) and increased grip (making it suitable for footpaths, ramps, and floors). The raised grid can also be used as a key, as a base material for rendering and plaster.

 

It is also common for traditional expanded metal to then undergo a secondary process, which involves flattening it to form a completely two-dimensional flat sheet. Flattened mesh can be used in applications such as filtration, machine guarding, animal flooring, speaker grilles, and electromagnetic screens.     


Perforated Metal

 Perforated Metal  

Perforated metal mesh

Much like expanded metal, perforated metal is produced by piercing the material using customized tools to provide a range of shapes such as circles, squares, and rhombuses. However, unlike expanded metal, perforated metal is stamped rather than stretched and therefore produces scrap. This obviously has cost implications - especially if high-value raw materials are used in the manufacturing process.


Welded wire mesh

Welded wire mesh is produced by feeding a series of metal wires from individual spools, which are then properly spaced and welded in place. Welded wire mesh is an economical product, but its welded seams can easily become the weak link when considering strength and longevity - for example in security fencing applications. Material suitability is also limited due to the nature of the welding process.

 

Woven wire mesh

The production of woven wire mesh involves weaving metal wire at 90-degree intervals which results in a perpendicular, repetitive arrangement akin to weaving fabric for clothing.  The process lends itself well to achieving very fine apertures.  However, the process relies heavily on tension rather than mechanical fixing, which means the woven wire is prone to fray and not ideally suited to formed components.

 

Ares Metal is a specialist supplier of architectural metals. Depending on your project, we offer a variety of options for each of the specialty metals listed above to meet your specific needs. If you want to get more information about the architectural metal mesh, welcome to contact us today or request a quote.


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