Infrared and visual in-situ measurements of components made from AISI 316L in Laser Beam Direct Energy Deposition

The presented dataset comprises a measurement campaign conducted with the laser beam direct energy deposition (DED-LB/M) system LMD² of the University of Kassel. 
In DED-LB/M, metal powder is blown into a laser beam, where it is melted and deposited to build up material. Within this campaign, three specimens made of AISI 316L Powder were manufactured. Each specimen consists of ten adjacent deposited tracks, produced under identical process conditions. 
For the measurements, the build table was tilted by 55° relative to the surface normal of the untilted (horizontal) table to provide the cameras with an improved viewing angle of the process zone. The manufacturing process was monitored in-situ using three camera systems: a visible RGB camera (Basler ace 2 R PRO) and two midwave infrared (MWIR) cameras (InfraTec ImageIR 8380 hp & Telops MS M3k). 
The first MWIR infrared camera (InfraTec ImageIR 8380 hp) repeatedly captured four consecutive frames with varying integration times and optical filters to cover a temperature range from 300 to 2000 °C (blackbody radiation, emissivity = 1). The second MWIR infrared camera (Telops MS M3k) repeatedly acquired a sequence of eight consecutive single images in eight different wavelength bands using an eight-position rotating filter wheel. In addition, the visible-range RGB camera repeatedly captured a sequence of three consecutive images at different exposure times to robustly capture both very bright and darker regions of the scene.