Datasets:
akumar33
/
manufacturing

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the O
printing B-MANP
process E-MANP
impair O
the O
mechanical S-APPL
performance O
of O
the O
printed O
parts O
, O
severely O
hindering O
their O
widespread O
application O
. O
Here O
, O
we O
report O
six O
pore S-PRO
formation O
mechanisms O
that O
were O
observed O
during O
the O
LPBF S-MANP
process O
. O
Our O
results O
reconfirm O
three O
pore S-PRO
formation O
mechanisms O
- O
keyhole O
induced O
pores S-PRO
, O
pore S-PRO
formation O
from O
feedstock S-MATE
powder O
and O
pore S-PRO
formation O
along O
the O
melting B-CONPRI
boundary E-CONPRI
during O
laser S-ENAT
melting O
from O
vaporization O
of O
a O
volatile O
substance S-CONPRI
or O
an O
expansion O
of O
a O
tiny O
trapped O
gas S-CONPRI
. O
We O
also O
observe O
three O
new O
pore S-PRO
formation O
mechanisms O
: O
( O
1 O
) O
pore S-PRO
trapped O
by O
surface S-CONPRI
fluctuation O
, O