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akumar33
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manufacturing

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, O
and O
helium S-MATE
) O
within O
a O
temperature B-PARA
range E-PARA
of O
295–470 O
K S-MATE
and O
a O
gas S-CONPRI
pressure O
range S-PARA
of O
1.4–101 O
kPa O
. O
The O
measurements O
of O
thermal B-PRO
conductivity E-PRO
indicate O
that O
the O
pressure S-CONPRI
and O
the O
composition S-CONPRI
of O
the O
gas S-CONPRI
have O
a O
significant O
influence O
on O
the O
effective B-PARA
thermal I-PARA
conductivity E-PARA
of O
the O
powder S-MATE
, O
but O
that O
the O
metal B-MATE
powder E-MATE
properties O
and O
temperature S-PARA
do O
not O
. O
Our O
measurements O
improve O
the O
accuracy S-CHAR
upon O
which O
laser S-ENAT
parameters O
can O
be S-MATE
optimized O
in O
order O
to O
improve O
thermal B-CONPRI
control E-CONPRI
of O
powder B-MACEQ
beds E-MACEQ
in O
selective B-MANP
laser I-MANP
melting I-MANP
processes E-MANP
, O
especially O
in O
overhanging O
and O
cellular O
geometries S-CONPRI
where O
heat B-CONPRI
dissipation E-CONPRI
by O