Fig. 10: Comparison of images of line scans with powder and without powder at varying input energy density.
From: The interplay between vapour, liquid, and solid phases in laser powder bed fusion
a–f X-ray images, showing that regardless of energy, melting powder on top of the substrate does not produce large differences in the surface depression, because the laser beam interacts mainly with molten material. g–l Schlieren images reveal how the plume and atmospheric flow interacts with the powder layer. 200 μm scale bar applies to panels (a–f), 1 mm scale bar applies to panels (g–l). A video with the images used in this figure is available in the supplementary materials.
