Alluminio (AlSi10Mg)
Le produzioni in AlSi10Mg garantiscono una buona resistenza e durezza quindi solitamente l'alluminio viene utilizzato per realizzare componenti in grado di sopportare carichi elevati e nelle applicazioni che richiedono buone caratteristiche termiche e di leggerezza.
Si tratta di una lega contraddistinta dalle buone proprietà di fusione e utilizzata generalmente nella produzione di elementi con strutture sottili e caratterizzate dalla geometria complessa.
Dati Tecnici Materiale
| Technical Data | Test Method | |
| Typical achievable part accuracy | - - - - - - - | ± 100 μm |
| Smallest wall thickness [1] | - - - - - - - | approx. 0.3 – 0.4 mm |
| Surface roughness, as built, cleaned | - - - - - - - | Ra 6 - 10 μm, Rz 30 - 40 μm |
| Surface roughness, after micro shot-peening | - - - - - - - | Ra 7 - 10 μm, Rz 50 - 60 μm |
| Physical and Chemical properties of parts | Test Method | |
| Material composition | - - - - - - - |
Al (balance) Si (9.0 - 11.0 wt-%)≤ Fe (≤ 0.55 wt-%) Cu (≤ 0.05 wt-%) Mn (≤ 0.45 wt-%) Mg (0.2 - 0.45 wt-%) Ni (≤ 0.05 wt-%) Zn (≤ 0.10 wt-%) Pb (≤ 0.05 wt-%) Sn (≤ 0.05 wt-%) Ti (≤ 0.15 wt-%) |
| Relative density | - - - - - - - | approx. 99.85 % |
| Density | - - - - - - - | 2.67 g/cm3 |
| Mechanical Properties of parts | Test Method | As Built | Heat Treated [5] |
| Tensile strength [2] in horizontal direction (XY) |
ISO 6892-1:2009(B) Annex D |
460 ± 20 MPa 66.7 ± 2.9 ksi |
345 ± 10 MPa 50.0 ± 1.5 ksi |
| Tensile strength [2] in vertical direction (Z) |
ISO 6892-1:2009(B) Annex D |
460 ± 20 MPa 66.7 ± 2.9 ksi |
350 ± 10 MPa 50.8 ± 1.5 ksi |
| Yield strength (Rp 0.2 %) [2] in horizontal direction (XY) |
ISO 6892-1:2009(B) Annex D |
270 ± 10 MPa 39.2 ± 1.5 ksi |
230 ± 15 MPa 33.4 ± 2.2 ksi |
| Yield strength (Rp 0.2 %) [2] in vertical direction (Z) |
ISO 6892-1:2009(B) Annex D |
240 ± 10 MPa 34.8 ± 1.5 ksi |
230 ± 15 MPa 33.4 ± 2.2 ksi |
| Modulus of elasticity in horizontal direction (XY) | - - - - - - - |
75 ± 10 GPa 10.9 ± 0.7 Msi |
70 ± 10 GPa 10.2 ± 0.7 Msi |
| Modulus of elasticity in vertical direction (Z) | - - - - - - - |
70 ± 10 GPa 10.2 ± 0.7 Msi |
60 ± 10 GPa 8.7 ± 0.7 Msi |
| Elongation at break [2] in horizontal direction (XY) |
ISO 6892-1:2009(B) Annex D |
(9 ± 2) % | 12 ± 2 % |
| Elongation at break [2] in vertical direction (Z) |
ISO 6892-1:2009(B) Annex D |
(6 ± 2) % | 11 ± 2 % |
| Hardness [3] | DIN EN ISO 6506-1 | approx. 119 ± 5 HBW | - - - - - - - |
| Fatigue strength [4] in vertical direction (Z) | - - - - - - - |
appr. 97 ± 7 MPa appr. 14.1 ± 1.0 ksi |
- - - - - - - |
| Thermal properties of parts | Test Method | As Built | Heat Treated [5] |
| Thermal conductivity at 20 °C in horizontal direction (XY) | - - - - - - - | approx. 103 ± 5 W/m °C | approx. 173 ± 10 W/m °C |
| Thermal conductivity at 20 °C in vertical direction (Z) | - - - - - - - | approx. 119 ± 5 W/m °C | approx. 173 ± 10 W/m °C |
| Specific heat capacity in horizontal direction (XY) | - - - - - - - | approx. 920 ± 50 J/kg °C | approx. 890 ± 50 J/kg °C |
| Specific heat capacity in vertical direction (Z)) | - - - - - - - | approx. 910 ± 50 J/kg °C | approx. 890 ± 50 J/kg °C |