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Thermal field data set for additively manufactured lattices and inclined cylinders using selective laser melting
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dataset
modified on 2021-02-17, 04:44 Data set was generated from thermal camera video of a selective laser melting additive manufacturing process. The printed geometry includes three 40x40x30 mm lattices and 12 inclined cylinders and image registration features.
The image focusses on a region of approximately 100 mm x 100 mm. With 320x256 pixel format, with a 60degree inclination from the build plate.
The process variables were:
Machine SLM Solutions 500 HL
Material Ti6Al4V
Layer Thickness 60μm
Laser Power (Perimeter) 185W
Laser Power (Infill) 250W
Laser Velocity (Perimeter) 1150mm/s
Laser Velocity (Infill) 1200mm/s
Hatch Spacing 105µm
Hatch Orientation 17° rotation per layer (9° to 171°, first layer 45°)
Stripe Width 5mm
Recoat Time ~21s
For each layer, pixels that are outside the part geometries are excluded.
Thermal fields were evaluated during cooling at reference temperature of 500C, after the peak temperature that must first exceed 600C.
Values that could not be evaluated are assigned the value -1.
Thermal field values
(file CollapseAll_500_AllLayers.txt):
xindex, pixel X location
yindex, pixel Y location
LayerID, build layer
RegionID, lattice identifier / cylinder inclination angle identifier
TimeAtMaxTemp, - frame at which max temperature observed
MaxTemp, - max temperature
FrameAt500, - frame cooling through 500C (t_ref)
CoolRateAt500, - cooling rate at (t_ref) 5point moving ave
MaxGradientAt500, maximum thermal gradient
MaxGradDirAt500, - direction for maximum thermal gradient
CoolingDuration500to300, - number of frames after t_ref to cool to 300C
NumberReheats-Prom50-Width2 - count of reheats after t_ref
Position values
(file PositClassL3_fromCollapseAll_AllLayers2.txt):
Xindex, - pixel X location
Yindex, - pixel Y location
LayerID, - build layer
RegionID, - lattice identifier / cylinder inclination angle identifier
SubRegionID, - lattice strut directions and cylinder diameters
Xcoord, - X location in build coords
Ycoord, - Y location in build coords
Zcoord, - Z location in build coords
Xfund, - X position relative to unit cell
Yfund, - Y position relative to unit cell
Zfund, - Z position relative to unit cell
Xunit, - unit cell X index (0) centre of lattice
Yunit, - unit cell Y index (0) centre of lattice
Zunit, - unit cell Z index (0) base layer
Xmirror, - X position with mirroring into unit cell symmetry octant
Ymirror, - Y position with mirroring into unit cell symmetry octant
Zmirror, - Z position with mirroring into unit cell symmetry octant
Xdiag, - X after further mirror across diagonal
Ydiag, - Y after further mirror across diagonal
Xstack, - X position relative to strut centroid
Ystack, - Y position relative to strut centroid
SolidBodies, Solid pixels below
Solid1stNeighbs, In plane solid neighbouring pixels (0-8)
Solid2ndNeighbs, In plane solid neighbouring pixels (0-24)
ClusterID