Fig. 2: Laser oscillation path and quantification.
From: High frequency beam oscillation keyhole dynamics in laser melting revealed by in-situ x-ray imaging
a Laser scan path, b calculated transient speed, and c calculated transient speed and experimental keyhole depth profile of an oscillation cycle between 3.28 and 3.44 ms of an experiment with process parameters of 400 W, 400 mm s−1 linear scan speed, and 0.12 mm circular oscillation diameter. Note that the corresponding DXR video frames can be found in Fig. 3a. The blue and red arrows in b highlight the response of the transient speed profile to the increasing linear scan speed and the increasing oscillation diameter, which is also summarized in d.
