2.2　Simulation model of the L-PBF printer

2.2.1　Problem description

Fig.2-1 shows spatter particles during the L-PBF manufacturing process of a Ti-6Al-4V object.Laser power is 100 W, and laser scanning velocity is 0.5 m/s.After the laser is switched off, there are noticeable spatter particles around the part above the workbench and pollution on the powder bed.This indicates that the spattering of particles during the L-PBF manufacturing process is a severe problem that needs to be addressed.