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in O
a O
static O
three-point B-CHAR
bending I-CHAR
test E-CHAR
, O
but O
their O
impact S-CONPRI
behaviors O
differed O
greatly O
. O
The O
obtained O
results O
highlight O
that O
the O
impact S-CONPRI
performance O
of O
AM S-MANP
polymers O
is O
an O
essential O
design S-FEAT
variable O
for O
fluid-containing O
parts O
. O
This O
investigation O
focuses O
on O
geometric O
parameters S-CONPRI
of O
nozzles S-MACEQ
used O
in O
Fused B-MANP
Filament I-MANP
Fabrication E-MANP
. O
They O
are O
mainly O
responsible O
for O
the O
extrusion S-MANP
force O
. O
Typical O
nozzles S-MACEQ
are O
made O
of O
brass S-MATE
and O
feature S-FEAT
a O
decrease O
in O
diameter S-CONPRI
from O
an O
entry O
channel S-APPL
to O
a O
capillary O
with O
a O
conical O
section O
in O
between O
. O
Commercially O
available O
and O
custom O
nozzles S-MACEQ
with O
various O