3D-printing with Alumide
High stiffness. Metallic appearance. Metal or plastic?
The material Alumide is a polyamide, more precisely polyamide 12, that has been mixed with aluminium dust. The admixed aluminium provides the metallic appearance of the finished laser-sintered components made of this plastic. FKM has this metallic grey powder for 3D-printing in stock permanently. The finished components created during 3D-printing with Alumide are fully operational and functional. Objects made of this material can be very well reworked after printing. The surfaces can also be refined by grinding, polishing, or coating. Chipping is also possible. Anyone who wants to produce components that have a metallic appearance but are made of lightweight plastic and yet are heat-resistant and durable is well advised to use Alumide. 3D-printing with Alumide also produces very clean and detailed results.
The advantages at a glance
- excellent dimensional stability
- balanced ratio of density and stiffness
- good thermal conductivity
- easy to machine
- dimensionally stable
- metallic appearance
|shore hardness D (15s)||76|
|tensile modulus||3800 MPa|
|tensile strength||48 MPa|
|flexural strength||72 MPa|
|elongation at break||4 %|
|temperature of dimensional stability (1.80 MPa)||144 °C|
|density (laser sintered)||1360 kg/m³|
|melting temperature (20 °C/min)||176 °C|
Possible applications of Alumide
Thanks to its good mechanical and thermal properties, 3D-printing of Alumide objects is suitable for the automotive industry, for example, to carry out tests in the wind tunnel. But model making also benefits from the use and laser sintering of the material, among other things because of the metallic appearance of the printed workpieces. Prototypes as well as small series are printed quickly with Alumide and are fully operational and functional.