Metallilõikekettad

Metallilõikekettad are abrasive discs used for cutting metal. They are typically made from a composite material of abrasive grains, such as aluminum oxide or silicon carbide, bonded together by a resin. The abrasive grains grind away at the metal surface, creating a narrow cut. These discs are commonly used with angle grinders, chop saws, and other power tools designed for cutting metal.

The effectiveness and longevity of a metallilõikeketas depend on several factors. The type of abrasive grain is crucial; aluminum oxide is suitable for general-purpose metal cutting, while silicon carbide is better for harder metals like cast iron or non-ferrous metals. The grit size of the abrasive grains also plays a role, with coarser grits cutting faster but leaving a rougher finish, and finer grits producing a smoother finish. The bonding agent, usually a phenolic or epoxy resin, holds the grains together and must be strong enough to withstand the heat and force generated during cutting.

Safety is paramount when using metallilõikekettad. They can generate sparks, heat, and debris, so proper personal protective equipment (PPE) is essential. This includes safety glasses or a face shield, gloves, and hearing protection. The cutting disc should be inspected for damage before each use, and it's important to ensure it's securely attached to the tool. Overheating can cause the disc to break, and cutting at an incorrect angle can lead to kickback. Choosing the correct disc for the specific metal being cut and the tool being used is also vital for both performance and safety.