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. O
In O
WAAM S-MANP
, O
the O
welding S-MANP
strategy O
greatly O
influences O
the O
properties S-CONPRI
and O
quality S-CONPRI
of O
deposited O
parts O
. O
With O
an O
increasing O
number O
of O
starts O
and O
stops O
, O
the O
danger O
of O
uneven O
material S-MATE
build-up O
and O
welding B-CONPRI
defects E-CONPRI
increases O
. O
This O
study O
presents O
a O
novel O
strategy O
for O
generating O
optimal O
tool B-CONPRI
paths E-CONPRI
for O
WAAM S-MANP
of O
lightweight S-CONPRI
rib-web O
structures O
, O
mitigating O
the O
disadvantages O
of O
discontinuous O
welding S-MANP
paths O
such O
as S-MATE
welding O
defects S-CONPRI
and O
uneven O
build-up O
. O
When O
two O
or O
more O
weld B-CONPRI
beads E-CONPRI
are O
deposited O
on O
each O
edge O
, O
the O
vertices S-PARA
of O
the O
rib-web O
structure S-CONPRI
may O
suffer O
from O
underfilling O