A |
Path cross-section area [m3] |
C |
Specific heat capacity [J/kg·K] |
H |
Powder bed thickness [μm] |
ht |
Track height [m] |
L |
Specific latent heat [J/kg] |
ke |
Thermal effective conductivity of powder [W/mK] |
kp |
Track section profile coefficient [-] |
P |
Laser beam power [W] |
Pd |
Hatch spacing [μm] |
re |
Effective laser beam radius [μm] |
Tm |
Melting temperature [K] |
Tb |
Boiling temperature [K] |
TA |
Lower temperature limit [K] |
TB |
Upper temperature limit [K] |
V |
Laser scanning speed [mm/s] |
W |
Track width [m] |
β |
Porosity |
ρ |
Density [kg/m3] |