128
4 Simulation of Transient Keyhole and Weld Pool
Time/ms
(a)
(b)
Time/ms
Keyhole depth/mm)
Keyhole depth/mm)
One-time reflection condition
Multiple reflection condition
One-time reflection condition
Multiple reflection condition
Fig. 4.26 Variation curves of the keyhole depth with welding time under different multiple reflection
absorption conditions
Fig. 4.27 Variation curves
of the penetration depth with
time under different multiple
reflection conditions
One-time reflection condition
Multiple reflection condition
Time/ms
Penetration depth (mm)
Fig. 4.28 Variation curves
of the weld pool volume with
time under different multiple
reflection conditions
Time/ms
Size of weld pool (mm
3
)
One-time reflection condition
Multiple reflection condition