Dataset of Hyperspectral Melt Pool Signatures and Thermal Anomalies in DED of 316L steel



The dataset includes in-situ melt pool signatures (hyperspectral NIR images) during the Directed Energy Deposition of 316L steel for several classes of thermal anomalies. Thermal anomalies were created during the process by varying the scanning speed.

Samples were printed on the MiCLAD machine at the Vrije Universiteit Brussel (Belgium).

Process and acquisition parameters:
- Hardware:
- Machine: MiCLAD (Vrije Universiteit Brussel)
- Laser: High-YAG BIMO 1064nm, 2.55mm fibre, flat-top
- Nozzle: Harald-Dickler HighNo 4.0

- Process parameters:
- Laser power: 600 W
- Scanning speed: 500/700/900/1100/1300 mm/min
- Powder: 316L 45-105 um
- Powder flow rate: 3.5 g/m
- Layer thickness: 0.2 mm

- Image characteristics:
- Camera: 3D-One Avior AX-M25NIR
- Hyperspectral filter layout: 5x5 (25 wavelengths per image)
Date made available20 Dec 2023
Date of data production2023


  • Directed Energy Deposition
  • Hyperspectral imaging
  • In-situ monitoring

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