Alumide is a blend of aluminum powder and polyamide powder, which allows metallic-looking, non-porous components to be machined easily and is resistant to high temperatures (130°C). Typical applications include parts for wind tunnel testing in the automotive industry, small production runs, jig manufacturing, education and illustrative models with a metallic appearance.

Technical Specifications

Standard lead time Minimum of 4 working days, depending on part size, number of components and finishing degrees (offline orders)
7 working days (online orders)
Standard accuracy ± 0.3% (with lower limit on ± 0.3 mm)
Minimum wall thickness 1 mm, but living hinges are possible at 0.3 mm
Layer thickness 0.12 mm
Maximum part dimensions 650 x 330 x 560 mm (offline orders)
300 x 400 x 400 mm (online orders)
Surface structure Unfinished parts typically have a rough surface but all kinds of fine finishes are possible.
Laser-sintered parts can be sandblasted, colored/impregnated, painted, covered and coated.

Datasheet

  Units Condition Alumide
Density g/cm³     1.36 +/- 0.05
Tensile Strength MPa  DIN EN ISO527 48 +/- 3
Tensile Modulus MPa  DIN EN ISO527 3800 +/- 150
Flexural Modulus MPa  DIN EN ISO178 3600 +/- 150
Charpy – Impact strength kJ/m2 DIN EN ISO179 29 +/- 2
Charpy – Notched Impact Strength MPa DIN EN ISO179 4.6 +/- 0.3
Izod – Impact Strength kJ/m2 DIN EN ISO180 N/A
Izod - Notched Impact Strength kJ/m2 DIN EN ISO180 N/A
Ball Indentation Hardness   DIN EN ISO2039 N/A
Shore D/A-hardness   DIN 53505 D 76 +/- 2
Heat Deflection Temp °C ASTM D648 (1.82MPa) 130
Elongation at Break  DIN EN ISO527 3.5 +/- 1

Actual values may vary with build condition

Finishing Degrees

Finishing Powder removal Sandblasting Smoothing Primer Coating/Paint
Normal      
Spray Paint    
Spray painted according to RAL color
Dead Matte Paint
Our most matte option, with gloss factor of 10%
Matte Paint
Gloss factor of 30%
Satin Paint
Gloss factor of 50%
High-Gloss Paint
Our most glossy option, with gloss factor of 90%
Soft Touch
Soft touch coating according to RAL color (translucent)

How Does Laser Sintering Work?

Laser Sintering is a laser-based technology that uses solid powder materials, typically plastics. A computer-controlled laser beam selectively binds together particles in the powder bed, by raising the powder temperature above the glass transition point after which adjacent particles flow together. As the powder is self-supporting, no support structures are necessary.