Project Description
Generality
The Alumide is a metallic grey aluminium-filled polyamide 12 powder. This material is characterised by its high stiffness, its metallic appearance and good post-processing possibilities.
Property
Alumide parts are characterized by excellent mechanical properties such as, in particular, an excellent dimensional accuracy, a well-balanced ratio of density and stiffness, an increased thermal conductivity and a good machinability.
Mechanical parameters
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Elastic traction module
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DIN EN ISO 527
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3800 ± 150 N/mm²
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Tensile strength
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DIN EN ISO 527 |
46 ± 3 N/mm²
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Breaking elongation
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DIN EN ISO 527 |
3,5 ± 1 %
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Elastic flexural module
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DIN EN ISO 178 |
3000 ± 150 N/mm²
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Flexural strength
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DIN EN ISO 178 |
74 ± 2 N/mm²
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Impact resistance to Charpy
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DIN EN ISO 179 |
29 ± 2 kJ/m²
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Charpy resilience
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DIN EN ISO 179 |
4,6 ± 0,3 kJ/m²
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Shore hardness
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DIN 53505
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76 ± 2
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Thermal characteristics
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Fusion point
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DIN 53736
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172 – 180 °C
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Dimensional stability temperature
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ASTMD648 (0,45 Mpa)
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177,1 °C
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Vicat B / 50 softening temperature
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DIN EN ISO 306 |
169 °C
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Thermal conductivity (170 ° C)
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Procedura a filo caldo
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0,5 – 0,8 W(mK)¯¹
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Finish
The finish of the surfaces of Alumide items can be easily refined by grinding, polishing or coating. The big advantage of this material is that low wear and non-aggressive finishes can be carried out on the parts through substractive processes such as milling, drilling or lathe turning.
Applications
The Alumide is mainly used for the manufacturing of stiff parts of metallic appearance for applications in the automotive industry, for tool inserts for injecting and printing small production runs or, more simply, for illustrative or exposure models that need a metallic appearance.