Table 3.

Process Parameters Applied in Multipart Laser Beam Powder Bed Fusion Modeling

	Build plate size (m)	0.25 × 0.25 × 0.025
Tbp	Build plate preheat temperature (K)	293
Lh	Layer height (mm)	0.48
tm	Heating step time each layer (s)	0.000167
	Volumetric energy density (J/m3)	1.59 × 1010
tc	Cooling step time each layer (s)	40
P	Laser beam power (W)	95
A	Heat source absorption coefficient	0.4
R	Heat source spot radium (mm)	0.05
vs	Laser scanning speed (m/s)	0.6
ɛ	Emissivity	0.35
h	Heat transfer coefficient (w/m2/K)	12.7
L	Latent heat of fusion (kJ/kg)	370

From Wang et al.,⁴⁹ Zhao et al.,⁵⁰ and Shrestha and Chou.⁵¹