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Metals for industrial 3D printing

3D printing aluminium


3D printing aluminium: the heavy-duty lightweight

Aluminium materials are often used in additive manufacturing processes. They are particularly suitable for applications and components requiring good mechanical properties, high stability and a light weight. 3D printing aluminium has high thermal conductivity and is extremely corrosion-resistant.

Which 3D printing aluminium is optimal?
After extensive testing of various alloys, we decided to use 3D printing aluminium AlSi10Mg for our production activities AlSi10Mg is proven in additive manufacturing and is one of the most common and versatile 3D printing aluminium materials currently available.

The impressive material properties of AlSi10Mg
3D printing aluminium AlSi10Mg consists of 89.5 % aluminium, 10 % silicon and 0.5 % magnesium. The combination of silicon and magnesium gives the aluminium alloy its special strength and hardness compared to other aluminium materials in additive manufacturing. This makes AlSi10Mg ideal for components that are exposed to high mechanical or dynamic loads.

Fields of application of AlSi10Mg

3D printing aluminium AlSi10Mg is ideal for lightweight construction applications and components with thin-walled and complex geometries that are exposed to high stress. As a result, 3D printing aluminium is ideal for mechanical components in the aerospace, aviation, vehicle construction and bicycle industries, among others. 3D-printed components made of AlSi10Mg replace existing castings easily and equivalently. 3D printing aluminium AlSi10Mg enables the production of serial components in both large series and smaller batches, as well as the rapid production of technical prototypes (rapid prototyping).


An extra-strong and hard 3D printing aluminium alloy

The combination of aluminium with 10 % silicon and 0.5 % magnesium gives the alloy special strength and hardness compared to other aluminium alloys. To further improve mechanical properties such as ductility and electrical and thermal conductivity, parts made of AlSi10Mg can also be heat-treated. The printing layers in the 3D printing process are between 0.03 and 0.1 millimetres thick with this 3D printing aluminium material. To ensure optimum break resistance and stability, the walls of the components should be at least 0.5 millimetres thick.

Maximum installation space: 800 x 400 x 500 mm

Properties of 3D printing aluminium AlSi10Mg
  • Yield strength Re 170 – 220 N/mm²
  • Tensile strength Rm 310 – 325 N/mm²
  • Elongation at break A 2 – 3 %
  • Modulus of elasticity ca. 75 • 10³ N/mm²
  • Formbeständigkeitstemperatur (xy) 660,4°C
  • Thermal conductivity ʎ 120 – 180 W/mK
  • Coefficient of thermal expansion (at RT) 20 • 10-6K-1
  • DIN EN 1706

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