The abrasive materials have major applications in the manufacturing industries for finishing metal and non-metallic workpieces. These abrasives are mainly classified into two major groups: Bonded and Coated abrasives.
Bonded abrasive products such as (grinding wheels) and coated abrasives products such as (belts, discs, sheets, etc.) are used to eliminate excessive stock from the surface and perform their role in polishing and finishing of the metal and nonmetals.
Along, with bonded and coated abrasives there is a third category of non-woven abrasives.
Non-woven abrasives are highly specialized and necessary products for preparing and applying the final surface finish. There are wide uses of non-woven abrasives.
These products are made by a "web" of nylon fibers bonded together with synthetic resins. The fibers are infused with abrasive grain, creating a padded, (3D) three-dimensional material that is flexible and long-lasting, as well as suitable to the workpiece.
Non-woven abrasives are perfect grinding items for deburring, cleaning, and achieving the required finishing to a variety of materials.
Although non-wovens abrasives are produced differently than traditional coated abrasives, many of the same abrasive materials are used for all types of products.
Silicon carbide is sharper, cuts deeper and faster and, on most surfaces, produces finer scratch patterns. Aluminum oxide appears to last longer and is more durable. In some applications (such as hardened steel parts), it is more aggressive and causes less aluminum decoloration.
There are various forms of Non-Woven Abrasives:
Basically, Nonwoven abrasives can be divided into the following categories:
Flap wheels are designed with multiple abrasive sheets attached to the core. These abrasive sheets wear away during the grinding process and frequently exposes new & fresh abrasive layer. The non-woven polishing wheel is widely used for deburring, cleaning, polishing, fabricating, and finishing in metalworking applications.
Quick change discs are mainly used with the grinders to prepare surfaces for paint and other finishing applications. The non-woven abrasive discs are mainly available in fiber across the grit range from coarse to very fine. Quick change disc saves time with their easy twist-on fastening functions.