Scientists Create Hard Metal Using 3D Printing

Topic: Materials Science

Researchers from Hiroshima University used a new method to create a hard metal called tungsten carbide-cobalt (WC-Co) using 3D printing. This process reduces waste and lowers production costs while preserving the material's strength.

Tungsten carbide-cobalt (WC-Co) is a very hard metal that is used in many industrial tools, such as cutting tools and drills. However, it is difficult to shape and expensive to produce. A team of researchers from Hiroshima University has found a new way to make WC-Co using 3D printing.

The traditional method of making WC-Co involves compressing fine powders under high pressure and heating them in sintering machines. This process produces very durable parts, but it uses a lot of material and can be expensive. The researchers wanted to find a more efficient way to make WC-Co.

They used a technique called additive manufacturing (AM), also known as 3D printing. Unlike traditional methods that shape a part by cutting away material or filling a mold, AM builds an object by placing material only where it is required. In this case, the researchers used hot-wire laser irradiation to add WC-Co material to a base material.

The team tested two different ways of using this technique and found that it could produce WC-Co with similar properties to conventionally manufactured materials. They also reduced waste and lowered production costs.

Why It Matters

This discovery is important for India because it can help reduce waste and lower production costs in industries such as manufacturing and construction. It can also lead to the development of new technologies that use this hard metal.

Key Facts

• Tungsten carbide-cobalt (WC-Co) is a very hard metal used in industrial tools.
• The traditional method of making WC-Co uses a lot of material and can be expensive.
• Additive manufacturing (AM), or 3D printing, is a new technique that builds objects by placing material only where it is required.
• Hot-wire laser irradiation is a technique used to add WC-Co material to a base material.
• The researchers reduced waste and lowered production costs using this new method.

Key Terms

Additive Manufacturing

A technique that builds objects by placing material only where it is required.

Tungsten Carbide-Cobalt (WC-Co)

A very hard metal used in industrial tools, made from tungsten carbide and cobalt.

Implications

This discovery is important for India because it can help reduce waste and lower production costs in industries such as manufacturing and construction. It can also lead to the development of new technologies that use this hard metal.