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DMLS Aluminum(AlSi10Mg)

Parts in EOS Aluminium AlSi10Mg are ideal for applications which require a combination of good thermal properties and low weight. They can be machined, spark-eroded, welded, micro shot-peened, polished and coated if required.

Min. Charge: $66

Lead Time: 8 days

Max Size:

250 x 250 x 325 mm

Min Size: 

5 x 5 x 5 mm

Default Layer Height: 
0.05 mm

Optional Layer Heights(mm): 



±0.2% (with a lower limit of ±0.2 mm)

Heat endurance: 


Smooth:  ★★★

Detail: ★★★

Accuracy: ★★★★

Rigidity: ★★★★★

Flexibility: ★★

Available Colors


Available Post Process



Suitable For

Functional prototypes and end products,
Cases, holders, adapters,
Sales, marketing and exhibition models,
Form and fit testing,
Functional prototyping and testing,
Jewelry, art

Not Suitable For

Fine-detail models with smooth surfaces,
Large models,
Cavities within design (unless making use of escape holes)

Additional Info

The pricing for Aluminum is based on:

- Model volume: The volume of your model is used to calculate the material cost (mm³)

- The box around your model: An imaginary box around your model determines how much space your design will take up in the printer (X * Y * Z = mm³)

- Model surface

For Aluminum, we charge a minimum price per ordered piece. Unlike the startup cost (which is applied to most materials), this cost vanishes when the price is higher than the minimum price.

Aluminum (AlSi10Mg) is a strong, low weight material with good thermal properties. It’s printed by sintering aluminum powder together with a laser to produce metal parts that are equally as good as machined models. 3D-printed aluminum doesn’t look like traditional shiny milled aluminum. Instead, it has a matte gray finish with a slightly rougher and less defined surface. The subtle sparkle you’ll notice is caused by the presence of silicon in the alloy.

Aluminum is suitable for strong, light and precise metal parts. Applications range from spare parts to components of RC cars, gadgets, and even jewelry.
  Min Supported Wall Thickness
A supported wall is one connected to other walls on two or more sides.
0.8 mm
  Min Unsupported Wall Thickness
An unsupported wall is one connected to other walls on less than two sides.
1 mm
  Min Supported Wires
A wire is a feature whose length is greater than five times its width. A supported wire is connected to walls on both sides.
0.8 mm
  Min Unsupported Wires
A wire is a feature whose length is greater than five times its width. An unsupported wire is connected to walls on less than two sides.
1 mm
  Min Embossed Detail
A detail is a feature whose length is less than twice its width.
The minimum detail is determined by the printer's resolution.When detail dimensions are below the minimum, the printer may not be able to accurately replicate them. Details that are too small can also be smoothed over in the polishing process.
To ensure details come out clearly, make them larger than the indicated minimum. We may refrain from printing products with details smaller than the minimum, since the final product will not be true to your design. If your product has details smaller than the minimum, try making them larger, removing them, or considering a material with finer detail.
0.6 mm
  Min Engraved Detail
A detail is a feature whose length is less than twice its width. Engraved or debossed details go into a surface.
0.6 mm
  Min Clearance
Clearance is the space between any two parts, walls or wires.
To ensure a successful product, make the clearance between parts, walls, and wires greater than the indicated minimum. If your clearance is too small, try making the gap bigger, or consider fusing the parts or features if their independence is unnecessary. You can also try a material with a smaller minimum clearance.
1 mm
  Min Escape Holes
Escape holes allow unbuilt material inside hollow products to be removed.
Normally you don't need to consider this, our technician will add escape holes before printing.
When products contain hollow cavities, they are often filled with powder/liquid even after they are removed from the build tray. If escape holes are not large enough, or the geometry of the product makes it difficult to shake or blast the powder out, we cannot successfully clean it.
0 mm
  Interlocking/moving or enclosed parts?
Sometimes the interlocking/moving parts can't be printed, since the supports inside the cross section can't be removed.
  Require Support Material?
Because each layer needs to build off the last, for some material, angles of more than 45 degrees generally require supports to be printed along with the design. Supports are not inherently detrimental for your design, but they do add complexity to the printing process and lead to less smooth finish on overhanging parts.









3D Printer

EOS-M290, 3D Systems-ProX DMP 320, Renishaw-AM250, Conceptlaser-M2, Farsoon-FS121M

Material Spec Sheet

DMLS Aluminum(AlSi10Mg) is 3D printed using SLS (Selective Laser Sintering) technology.

Laser sintering is used to build your design with this material.

The models are printed layer by layer by a laser that draws thin lines in the powder, which melts and bonds it together in order to form a thin layer of the model. After a layer is printed, a new layer of fresh powder is spread over the surface by a roller. The printer has a print chamber that is heated to just below the melting point of the powder; the laser beam adds the extra energy to melt the powder, forming a solid model. After a print job is finished, the result is a big block of heated powder with the printed models contained inside.

How is SLS 3D Printing Working?

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