… of keyhole-mode laser melting in a laser powder-bed fusion additive manufacturing setting
for … The conditions required to transition from conduction controlled melting to keyhole-mode …

… to the collapse of the keyhole recoil zone, causing … keyhole mode in a multi-layer LBPF
process and can be used to guide the reduction in porosity and spatter in additive manufacturing…

… modes – conduction mode and keyhole mode. We have revealed the heat and mass balance
in these two typical printing modes … flows present in the keyhole mode. Gravity drives the …

… Among various pore defects, the porosity under the keyhole mode melting 11,14 is a
ubiquitous defect in both laser welding 15 and laser powder bed fusion (L-PBF) and has attracted …

… mode of the sample (ie, conduction or keyhole mode) and its relation to laser drilling speed,
vapor depression dynamics, and front keyhole … material, into the keyhole regime, where the …

… laser additive manufacturing practices and create new research directions. The significance
of the keyhole, … For example, melting in keyhole mode can potentially refine grain structure, …

… keyhole pore formation beyond tuning laser processing conditions during keyhole mode laser
… Here we report a novel approach to mitigate keyhole pore formation during laser powder …

… pool fusion modes. Other … keyhole transition in scanning mode: most authors investigated
the KH shape and stability at steady state. Nevertheless, examination of conduction-to-keyhole …

… (LPBF) additive manufacturing is being … keyhole mode melting 6 to ensure complete fusion
between successive layers. Additionally, laser absorptivity increases dramatically in keyhole …

… Additive manufacturing (AM) has gained increasing attention over the past several decades,
for its ability to fabricate products with complex geometry [1], and manufacturing … the keyhole …