PA-AF 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.

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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)
Layer thickness 0.15 mm
Minimum wall thickness 1 mm
Minimum detail 0.3 mm
Minimum clearance 0.6 mm between parts that need to be assembled
0.5 –  0.6 mm between shells of an interlocking part
Maximum part dimensions 630 x 330 x 550 mm (online & offline orders)
Interlocking or enclosed parts? Yes
Surface structure Unfinished parts typically have a grainy surface but all kinds of fine finishes are possible. Laser-sintered parts can be sandblasted, colored/impregnated, painted, covered and coated.


Density 1.36 ±0.05 g/cm³    
Tensile Strength 48 ±3 MPa  DIN EN ISO527
Tensile Modulus 3800 ±150 MPa  DIN EN ISO527
Flexural Modulus 3600 ±150 MPa  DIN EN ISO178
Charpy – Impact strength 29 ±2 kJ/m² DIN EN ISO179
Charpy – Notched Impact Strength 4.6 ±0.3 kJ/m² DIN EN ISO179
Shore D/A-hardness D76 ±2 DIN 53505
Heat Deflection Temperature 130 °C ASTM D648
@ 1.82 MPa
Elongation at Break  3.5 ±1%  DIN EN ISO527

Actual values may vary with build condition

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.

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