Correlation between Keyhole Geometry and Reflected Laser Light Distribution in Laser-based Manufacturing
David Deisenroth, Sergey Mekhontsev, Wenda Tan, Wenkang Huang
This study investigated the correlation between the keyhole geometry and reflected laser light distribution during laser-based manufacturing processes. An "imaging dome" system was developed to capture the distribution of the reflected laser light on a registration dome during the process, and found that the reflected laser distribution varied significantly as the keyhole shape was changed by reducing the laser scanning speed. A numerical model was leveraged to understand the multiple reflections of laser rays within the keyholes of different geometries. The results demonstrated the potential of a novel approach for in-situ detection of keyhole shapes during laser-based manufacturing.
, Mekhontsev, S.
, Tan, W.
and Huang, W.
Correlation between Keyhole Geometry and Reflected Laser Light Distribution in Laser-based Manufacturing, Manufacturing Letters, [online], https://doi.org/10.1016/j.mfglet.2023.09.002, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=936952
(Accessed December 3, 2023)