The legendary Damascus steel is now possible to print on a 3D printer

Engineers from the max Planck Society in düsseldorf and the Institute for laser technologies Fraunhofer in Aachen (Germany) has developed a new technology for the creation of heterogeneous microstructures using 3D printing. To visualize their work, they printed an analogue of the famous Damascus steel. It’s not a billet for weapons, about the outstanding performance of the material can not speak, he was prepared to demonstrate how the old technology can be migrated into the modern world.

The main feature of Damascus steel is made up of alternating multiple layers of hard and soft metal inside a package. In classic forging these layers are first produced as separate pieces and then connected together. 3D printing method involves alternately applying different layers, to eventually repeat the same structure. However, in a classic Damascus steel uses two types of raw materials with different chemical composition that modern 3D printers are still too complicated task.

German scientists have used a common raw material – the alloy powder of iron, Nickel and titanium, however, has supplied the print head of the printer for more laser emitter. During printing, the powder melts and is poured a layer of predetermined thickness on the workpiece, then there is pause to that fresh coat has had time to cool below 195&nbdsp;°C. Then, using a laser, the upper part of this layer is heated instantly and on top of it immediately served the next layer of the molten metal.

Due to the fact that each layer separate areas cool down differently, changing the mechanical properties of the finished metal – it turns out that the alternating hard and soft layers. But the main caveat is that when re-opening a laser can very precisely influence the microstructure of the metal and thereby directly during printing to create parts of products with very different properties. That is what “designing” of new alloys on the move by German engineers called an achievement. A replica of the Damascus steel is just a clear demonstration of ideas.

Leave a Reply

Your email address will not be published. Required fields are marked *

Releated

Physicists have learned to turn plastic bottles in supercapacitors

Scientists from the University of California, riverside have developed a technology to produce components for supercapacitors from regular waste. We are talking about polyethylene terephthalate or PET, which is made most of plastic bottles. This material is from an economic point of view is significantly superior to high-tech raw materials, like graphene or carbon nanotubes. […]

Looks like a screwdriver of the XXI century

Recently Techcult wrote about the drill of the XXI century with a touchscreen and lasers. But the screwdriver is traditionally considered to be more simple, reliable and very straightforward tool. What similar high-tech screwdriver advanced Italian production? And it is similar to the Kinetic device Driver. Kinetic Driver designed by the Italian designer Giacomo Di […]

Our Solar system is most similar to space croissant

The sun emits powerful electromagnetic winds that envelop the planet in our solar system like a giant bubble. This magnetic bubble is called the heliosphere and protects the planet from dangerous space radiation. Scientists have long believed that the heliosphere is in the form of a comet – with a distinct nose and long flowing […]

Some homemade masks turned out to be more dangerous than no

Despite the fact that the industry has recovered from the shock of the first days of the pandemic COVID-19 and now produces enough facial masks of different types, most people in the world due to various reasons use homemade versions. Everyone understands that they are less effective than professional medical model, but the question is: […]