Numerical simulation of fusion zone shape of lotus-type porous metals produced by laser welding

摘要

The conclusions of this study are summarized as follows. 1. Fusion zone shape of the weld bead has little difference for three combinations. Calculated shapes and the experimental ones were similar. 2. The difference between the equivalent thermal diffusivity along and normal to the directional pores is small for the Lotus iron. 3. The little difference of laser absorption coefficient β and β for the Lotus iron.