222
8 Keyhole and Weld Pool Dynamics in Laser Welding with Filler Wires
(d) Keyhole longitudinal-section
morphology
(e) Weld pool morphology
(f) Free interface morphology
(c) Free interface morphology
(b) Weld pool morphology
(a) Keyhole longitudinal-section
morphology
(i) Free interface morphology
(h) Weld pool morphology
(g) Keyhole longitudinal-section
morphology
Fig. 8.19 Comparison of simulation results at the welding moment of 15.15 ms in non-metaldroplet transition, free transition and contact transition. a–c non-metal-droplet transition; d–f free
transition; g–i contact transition
Fig. 8.20 Curve of the
maximum speed absolute
value-time function of the
weld pool in
non-metal-droplet transition,
free transition and contact
transition
Time/ms
Maximum speed/(m/s)
Contact transition
Free transition
Non-metal-droplet
transition