Metal additive manufacturing, despite of offering unique capabilities eg unlimited design
freedom, short manufacturing time, etc., suffers from raft of intrinsic defects. Porosity is of the …

A three-dimensional high-fidelity model was developed to simulate the single track formation
of stainless steel 316L during selective laser melting. Different laser powers and scanning …

Oscillating laser welding has been one of the frontiers of modern welding research because
of the advantages in defect suppression, microstructure improvement, and performance …

The instability of the keyhole and bubble being captured by solidification interface are the
main factors that affect the formation of porosity in laser welding of both aluminum alloy and …

Welding processes are a fundamental part of modern engineering manufacturing. The
simulation of materials joining techniques requires the application of thermal models …

This is the first investigation on the potential of doubled-sided laser drilling for hole making
in Ti6Al4V-C/SiC, a hard-to-machine stacked structure that holds critical significance in high …

Keyhole-induced porosity occurring in deep-penetration laser welding is a large issue in
laser manufacturing large-thickness components. In order to improve understanding of the …

The formation of periodic structures in ultrafast laser-irradiated surfaces implies dynamic
coupling between the incoming light and the light-driven material. To capture the mutual …

The suppression mechanism of keyhole-induced porosity of oscillating laser beam welding
(OLBW) was investigated via numerical simulation with keyhole dynamics and melt flow. The …

With the aid of transparent glass, the keyhole behavior and porosity formation are directly
observed in laser welding of different aluminum alloys. A three-dimensional model is …