3D printing with Aluminium

3D printing with aluminium is done through Selective Laser Melting (SLM). This technology melts 30-micron layers of aluminium into powder thanks to a 400 W laser. The difficulty in welding aluminium means that it is essential to have good knowledge about this printing technique and the material itself to guarantee the best quality and repeatability of the entire production process.


3D printing process with aluminium

To create quality prints with aluminium, it is essential to have good know-how of SLM technology and material. Factors such as layer thickness, the number and geometrics of the manufacture supports, and the printer parameterisation are key factors.

Technical specifications of Aluminium

  • AlSi10Mg
  • Low density: 2.7 g/cm3. 01.
  • Tensile strength: 400 MPa 02.
  • Excellent electrical conductivity 03.
  • High heat conductivity 190 W/mK 04.

The high mechanical properties per mass unit, combined with topologically optimised designs makes that this material can be used for extremely light designs. Reduced tooling costs of short-runs in aluminium casting or injection processes. High corrosion resistance, which can be increased when anodized.

Technical data sheet


Surface finish in 3D printed aluminum parts.

Items printed with aluminium using SLM have some excellent properties. However, the roughness of their surface can be more than other materials. This finish is suitable for most uses, but if you need another kind of finish, such as a polished finish, do not hesitate to get in touch with our team who will gladly address your specific needs.

The process step by step

3D file

Send us your 3D file ready to print.
If you do not have the file, send us the item and we will create the CAD file.
If you need a design from scratch, our designers will gladly prepare a quote for you.

3D Printing

We will create the process file adapted to the technology and materials that will be used to produce your item.
We prepare and condition the printer to guarantee optimum quality.

Cleaning and post processing

This step is key when meeting your requirements, and it is one that we are highly specialised in.
The removal of the printing support structures, heat treatments, and surface finishes (blasting, polishing, tooling) are some of the most common post processes.

Discover the technology used in the process

Applications of 3D printed Aluminium

One of the most common uses of aluminium printed parts is the manufacturing of short-runs or prototypes to streamline the development of parts which will subsequently be manufactured in high volumes (melting, injection). Other uses are related to lighter structures or heat transfer, such as in the case of personalised heat exchangers.

Automobile prototypes
Aerospace and defence

Printing machinery

Used with Aluminium
Selective Laser Melting (SLM) Renishaw AM500S Flex

The Renishaw AM500S Flex is made for industry 4.0 process methods with optical system control and system processes. Its 500 W laser enables exceptional precision for manufacturing components with > 99.9% density, maximum strength and ductility.


The construction volume is 250 x 250 x 350 mm


The versatility of its design and the possibility of generating new process parameters make this equipment ideal for working with many different materials.

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Other materials

In addition to Aluminium, we offer 3D printing with metal in the following materials. Take a look and decide which one best suits your needs.

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