In-situ monitoring of a laser metal deposition (LMD) process: Comparison of MWIR, SWIR and high-speed NIR thermography

Video 1: Data of the MWIR camera of the whole ten layer build process of the first experimental run. The apparent temperature scale given in Fig. 3 is also valid for the video. The video has a playback frame rate of 25 Hz and shows all frames of the original video recorded at 800 Hz, thus the time in the video has to be divided by 32 to yield the real times. The frame shown in Fig. 3.a corresponds to a time of 01 min 25 s in the video, Fig. 3.b to 05 min 43 s and Fig 3.c to 18 min 58 s. Video 2: Data of the VIS camera of the third layer during the first experimental run. The apparent temperature scale given in Fig. 4.c is also valid for the video. The video has a playback frame rate of 25 Hz and shows all frames of the original video recorded at 10 kHz, thus the time in the video has to be divided by 400 to yield the real times. The frame shown in Fig. 4.b and c corresponds to a time of 09 min 27 s in the video. Video 3: Data of the SWIR camera of the ninth layer during the second experimental run. The apparent temperature scale given Fig. 6.c is also valid for the video. The video has a playback frame rate of 25 Hz and shows all frames of the original video recorded at 500 Hz, thus the time in the video has to be divided by 20 to yield the real times. The frame shown in Fig. 6.c corresponds to a time of 46 s in the video.