What Is Tungsten Or Cemented Carbide?

1.What is Hard Metal or Cemented Carbide?
Due to its extremely high hardness compared to other metals, cemented carbide is frequently referred to as a hard metal. Mild carbon steel has a hardness value of only 160 HV30, which is ten times lower than the typical hardness value of a cemented carbide product, which can reach 1600 HV30.
Cemented Carbide, despite being referred to as a hard metal, is actually a composite material made of hard Cemented Carbide particles embedded in a softer matrix of metallic Cobalt, Nickel, or other metals.

2.What is Cemented Carbide's Chemical Formula?
Cemented carbide has the chemical formula WC, which stands for wolfram carbide.

3.What is the Cemented Carbide History?
Cemented Carbide was first created in Germany in the 1920s because there was a great need for die materials that could withstand the heavy wear involved in drawing tungsten filaments for light bulbs. Everyone uses light bulbs, so a lot of tungsten filaments are required for manufacture. Following then, individuals created numerous additional uses for cemented carbide.

4.How is cementitious carbon produced?
Powder metallurgy is the primary method used to create cemented carbide, which involves mixing the powdered forms of cobalt and tungsten in ball mills before adding a binder to keep the powders together while pressing.

In the pressing procedures, particles are compressed into shapes that resemble the completed product's design using hydraulic presses or isostatic presses.

When in this state, the powder compact is simple to machine using standard metalworking equipment. We commonly refer to this procedure as "Half-Machining," which is how many people refer to it. Effective extraction techniques are needed because operators must exercise extreme caution when removing the small powder particles because they may be hazardous to their health.
The partially completed carbide product is then ready to be sintered after "Half-Machining." Usually, this is carried out between 1300 and 1700 °C in a vacuum or HIP furnace. Cemented Carbide and the cobalt matrix join together during the sintering process to create a dense "Hard Metal."

After sintering, the product becomes so difficult to machine that only diamond grinding—a highly specialized form of micro machining that is very expensive—can be used. Because this method cannot remove huge amounts of material, it is far more expensive than milling steel or other metals.

Typical Properties of Cemented Carbide Hard Metals

The basic characteristics of the most common grades of cemented carbide are shown in the table above. You can visit our website and the specific product page for further information. You can discover more relevant information.
Tungsten Rings Are Not Scratch-Prone

5.Uses of Hard Metals and Cemented Carbide
Cemented carbides are used in a variety of industrial areas. As practically every industry uses it, we refer to it as the teeth of our entire modern industrial system. such as in the fields of cutting tools, mining, oil and gas, mining, aerospace, and the military.
Whatever purpose you have in mind, feel free to contact Arris or Zhuzhou Hongtong.