Figure 1
Computed 3D transient temperature and velocity field in laser based AM process using Parameter Set 1 in Table 1 for second layer deposition of Ti-6Al-4V
(a) Isometric view where 1933 K and 1878 K represent liquidus and solidus temperatures, respectively. The isotherm of 1878 K represents the molten pool boundary. Half of the pool is shown due to the symmetric nature of the pool about the x–z plane. A reference velocity vector of 50 cm/s has been shown to comprehend the liquid metal flow velocity in the molten pool. (b) Measurement of the length of the pool on top view. (c) Measurement of depth of penetration of the pool on longitudinal cross-sectional view. (d) Transverse cross-sectional view to measure the area of the pool perpendicular to the scanning direction using Parameter Set 2 in Table 1 for IN625 (e) Pool shape and size comparison for single track 8 layers deposition between numerically calculated pool and experimentally obtained pool taken from literature12.
