Page 80 - MSAM-4-3

Materials Science in Additive Manufacturing Interpretable GP melt track prediction

ar m = l m/w m (II) characteristics of the melt pool, the characteristic difference
between the melt pool at the experimentally observed melt
c m = 4πs m/p m (III) track defects and the neighboring time steps was calculated
The oscillatory motion of the melt pool is induced for the melt pool using Equation IV.
by the combined effects of thermocapillary force, recoil  ∆ = ( x − x )/ x t m
t
t
t −1

m
m
m
pressure, and surface tension. After extracting the shape  t +1 t t +1 t (IV)
30
  ∆ m = ( x − x )/ x m
m
m

Figure 6. Extraction of melt pool features
Abbreviation: ROI: Region of interest

Figure 7. Changes in melt pool characteristics
Abbreviations: y : Y-coordinate of the melt pool centroid; c : Roundness of the melt pool; t : Convex defects in the melt pool; ar : The aspect ratio of the
m
m
m
m
melt pool; s : The area of the melt pool
m
Volume 4 Issue 3 (2025) 6 doi: 10.36922/MSAM025200030