Office: 89, Netaji Subhas Road, Kolkata – 700001, West Bengal, India
Factory: 79/4 Panchanantala Road, Near Panchanantala Bazar, Liluah, West Bengal, India.
Wire Mesh Manufacturer Kolkata
August 25, 2023

Perforated Metal, Expanded Metal and Wire Mesh: What is the Manufacturing Process Like?

In the realm of construction, design, and industrial applications, the role of materials like perforated metal, expanded metal, and wire mesh is pivotal. These versatile materials are not only known for their durability and functionality but also for the intricate manufacturing processes that these are used in. It is fascinating to know about the artistry and engineering behind the creation of perforated metal, expanded metal, and wire mesh. Read on and explore the manufacturing process of Expanded Metal, Perforated Metal, and Wire Mesh, as used by Expanded Metal Mesh Manufacturer Kolkata companies.

Expanded Metal

The fabrication of an expanded metal sheet initiates with the formation of multiple slits in the metal sheet, followed by its stretching. This stretching process gives rise to a distinctive diamond-patterned aperture, with one of the strands slightly protruding at an angle. The elevated strands can be flattened later in the process if deemed necessary.

This method minimizes wastage, effectively reducing production costs while enhancing the structural integrity of the final product.

Wire Mesh (Welded)

Welded wire mesh is meticulously fashioned from various alloys, including stainless steel, steel, copper, and brass. The wires are interconnected through welding at every intersection, ensuring flexibility, durability, and consistent aperture sizes. Stainless steel welded mesh proves indispensable in scenarios necessitating resistance against corrosion and rust.

It also boasts enhanced visual appeal and is versatile for diverse applications. The range encompasses galvanized steel, stainless steel, or plain steel variants. The aperture sizes span from 1/4″ to 6″, with varying gauges or wire diameters available for each alloy type.

Perforated Metal

Crafting a perforated metal sheet involves feeding sheet steel through a specialized machine that punches out round holes or custom designs as per customer specifications. The holes can be systematically aligned or staggered to optimize the number of openings.

Typically, the sheet’s perimeter is left imperforated by Perforated Sheet Manufacturer Kolkata companies, providing added stability. Recycled metal can be derived from the punched-out holes, albeit at an increased product cost. Larger sized hole or a higher number of holes can escalate scrap volume, thus potentially raising expenses.

Wire Mesh (Woven)

Woven wire mesh, also attainable in copper, stainless steel, brass, and steel, takes the form of a cloth woven with wire threads at 90-degree angles. Lengthwise wires are referred to as Warp Wires, while those that are perpendicular are called Weft Wires. Various weaving styles exist, such as plain weave, where each wire traverses over and under the adjoining one, and twilled weave, entailing two-over-two-under crossings. We offer an array of Dutch weaves as well. This versatile fabric can be woven from spanning stainless steel, diverse alloys, copper, and brass. The weaving process permits the creation of an array of wire diameters and aperture sizes, catering to multifarious applications.


From the initial stages of material preparation to the fine-tuned techniques that yield distinct patterns and structures, the world of metal fabrication is quite fascinating. The specific manufacturing processes used to produce Expanded Metal, Perforated Metal, and Wire Mesh help transform raw materials into essential components for use across various industries.

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