kovametalleiksi

Kovametalleiksi refers to a class of materials known as cemented carbides or hardmetals. These are composite materials produced by sintering a mixture of fine hard particles, typically tungsten carbide (WC), and a binder metal, usually cobalt (Co). Other carbides like titanium carbide (TiC) or tantalum carbide (TaC) can also be used, and nickel (Ni) can sometimes be substituted for cobalt. The manufacturing process involves mixing the carbide powders with the binder metal powder, pressing them into the desired shape, and then sintering the compact at high temperatures under vacuum or a controlled atmosphere. During sintering, the binder metal melts and infiltrates the carbide particles, forming a solid, dense structure.

The resulting material possesses exceptional hardness, wear resistance, and strength, making it suitable for a wide range of demanding applications. Its primary use is in cutting tools for machining metals, wood, and stone, as well as in wear parts for industrial machinery. Kovametalleiksi are also employed in mining tools, drill bits, extrusion dies, and even in components for the aerospace and automotive industries where extreme durability is required. The specific properties of a kovametalli can be tailored by adjusting the grain size of the carbide particles and the proportion of the binder metal, allowing for a balance between hardness, toughness, and wear resistance.