EOS Aluminium AlF357 for EOS M 290 | 30 µm
EOS M 290 - 30 µm - TRL 7
| System Setup | EOS M 290 |
|---|---|
| EOS Material set | AlF357_030_M291_100 |
| Software Requirements |
EOSPRINT 2.5 or newer EOSYSTEM 2.10 or newer |
| Recoater Blade | HSS (High Speed Steel) |
| Nozzle | EOS Grid Nozzle |
| Inert gas | Nitrogen |
| Sieve | 106 µm |
| Additional Information | |
|---|---|
| Layer Thickness | 30 µm |
| Volume Rate | 5.8 mm³/s |
Chemical and Physical Properties of Parts
Microstructure of the Produced Parts
| Defects | Thickness | Result | Number of Samples |
|---|---|---|---|
| Average Defect Percentage | 30 µm | 0.03 % | 20 |
| Density EN ISO 3369 | Thickness | Result | Number of Samples |
|---|---|---|---|
| Average Density | 30 µm | 2.67 g/cm³ | 1 |
Mechanical Properties
Mechanical Properties As Manufactured
| EN 2002-001 2005 Room Temperature | 30 µm | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break A [%] | Reduction of Area Z [%] | Modulus of elasticity [GPa] | Number of Samples |
|---|---|---|---|---|---|---|
| Vertical | 250 | 400 | 6 | - | - | - |
| Horizontal | 255 | 365 | 10 | - | - | - |
EN 2002-001 2005 on round specimen machined according to standard Annex C
Mechanical Properties Heat Treated
| EN 2002-001 2005 Room Temperature | | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break A [%] | Reduction of Area Z [%] | Modulus of elasticity [GPa] | Number of Samples |
|---|---|---|---|---|---|---|
| Vertical | 265 | 330 | 11.5 | - | - | - |
| Horizontal | 270 | 340 | 11.5 | - | - | - |
Laser melting process comprises extremely fast melting and re-solidification.
Due to the layerwise manufacturing method, the parts exhibit anisotropic properties depending on
the building direction. Suitable heat treatments can be used to meet the needs of various applications, e.g. to
reduce the anisotropy. Conventionally cast components of this type of aluminum alloy are often heat treated using a T6 cycle consisting of solution annealing, quenching and age hardening. A T6-like heat treatment has been specifically developed to increase the ductility and yield strength, and to reduce the anisotropy of the built parts, consisting of the following cycles:
Solution Annealing:
30 minutes at 540 °C (±6 °C) measured from the part, followed by instant quenching in water at room temperature.
Aging:
6 hours at 165 °C (±6 °C) measured from the part, followed by air cooling.
This step is carried out with a maximum delay of 40 hours after the solution annealing.
The mechanical properties for the heat treated condition have been attained through the described heat treatment procedure.
Thermal Conductivity
| EN ISO 22007-2 | Orientation | [W/m*K] |
|---|---|---|
| As Manufactured | Vertical | 140 |
| As Manufactured | Horizontal | 140 |
Hot Disk slab method (xy-plane) and Hot Disk 1D-method (Z-direction)
| EN ISO 22007-2 | Orientation | [W/m*K] |
|---|---|---|
| Heat Treated | Vertical | 150 |
| Heat Treated | Horizontal | 150 |
T6 Heat Treatment
Hot Disk slab method (xy-plane) and Hot Disk 1D-method (Z-direction)
Surface Roughness
Electrical Conductivity
| ASTM E1004-17 | Orientation | Typical Electrical Conductivity [%IACS] |
|---|---|---|
| As Manufactured | 30 µm | Default | Horizontal | 28-36 |
| ASTM E1004-17 | Orientation | Typical Electrical Conductivity [%IACS] |
|---|---|---|
| Heat Treated | 30 µm | Default | Horizontal | 35-40 |
T6 Heat Treatment
Electrical conductivity measured according to ASTM E1004 Standard Test Method for Determining Electrical Conductivity
Using the Electromagnetic (Eddy Current) Method.