Figure 6
(a–d) The relationship between the melt pool dimensions and MPTEI, (Trial #18, Ti–6Al–4V, 156 W, 0.8 ms dwell time). (e) The predicted melt pool boundary based on the fitted equations at t = 1.9 ms of Trial #18. (f) Melt pool depth prediction based on MPTEI. Notice the melt pool depth is the same as the keyhole depth during keyhole mode. This plot includes all Ti–6Al–4V cases. (g) The correlation between W, W1, and W2 with MPTEI for all Ti–6Al–4V cases during conduction mode. (h) The correlation between W, W1, and W2 with MPTEI for all Ti–6Al–4V cases during keyhole mode. (i) The correlation between thermal gradient and MaxTmax for all Ti–6Al–4V cases. (j) The correlation between horizontal solid–liquid boundary velocity (VW) and MaxTmax for all Ti–6Al–4V cases. (k) The correlation between vertical solid–liquid boundary velocity (VD) and MaxTmax· Laser Power for all Ti–6Al–4V cases.
