Advances in Materials Science and Engineering,
Journal Year:
2023,
Volume and Issue:
2023, P. 1 - 13
Published: Sept. 30, 2023
Additive
manufacturing
has
revolutionized
the
industry,
particularly
in
aerospace.
This
paper
provides
an
overview
of
advancements,
state-of-the-art,
challenges,
and
future
additive
aerospace
industry.
It
begins
by
discussing
workflow
comparison
software
required
for
modeling
slicing
designed
models.
Various
types
processes
used
industry
with
their
postprocessing
challenges
solutions
are
also
presented
detail.
Besides,
limitations
that
come
use
outlined.
The
investigated
given
several
advantages
such
as
ability
to
produce
complex
geometries,
reduce
material
waste,
improve
design
flexibility.
looks
promising,
potential
even
more
cost-effective
efficient
production.
concludes
proven
be
a
game-changer
presenting
different
advanced
components
detail,
continued
research
development
shaping
With
advancements
technology
processes,
can
overcome
become
reliable
alternative
traditional
methods.
Materials & Design,
Journal Year:
2023,
Volume and Issue:
227, P. 111776 - 111776
Published: Feb. 20, 2023
Lattice
structures
have
been
increasingly
used
in
load-carrying
applications
due
to
their
exceptional
mechanical
performance.
This
study
presents
a
novel
load
path
methodology
for
designing
and
optimizing
functionally
graded
lattice
composed
of
anisotropic
unit
cells
with
directional
reinforcement
struts.
Firstly,
the
optimal
density
distribution
structure
is
obtained
by
solid
isotropic
material
penalization
(SIMP)
topology
optimization.
Secondly,
pointing
stress
vectors
are
calculated
determine
orientations
cells.
Lastly,
model
constructed
using
tapered
beams
smooth
transition
between
struts
different
radii.
Two
examples
simply
supported
beam
3-dimensional
base
support
provided.
The
experimental
validation
showcases
that
proposed
design
improves
specific
stiffness
75
%
compared
uniform
body-centered
cubic
design.
Furthermore,
strength-to-weight
ratio
increased
232
more
desirable
distribution.
Materials & Design,
Journal Year:
2023,
Volume and Issue:
230, P. 111969 - 111969
Published: May 1, 2023
Metal
additive
manufacturing
(AM)
enables
the
fabrication
of
lattice-structured
heat
sinks
with
enhanced
transfer
properties.
The
lattice
structural
features
for
enhancing
and
suppressing
pressure
loss
need
to
be
clarified.
To
describe
dominating
loss,
eleven
parameters
consisting
three
groups,
namely
area,
hydraulic
diameter,
effective
flow
path,
are
proposed
used
as
inputs
neural
network
(NN)
surrogate
model.
model
precisely
quickly
predicts
property
simulated
by
computational
fluid
dynamics.
random
forest
feature
importance
is
select
necessary
sufficient
features.
Four
describing
bottleneck
in
pathway,
surface
intricate
structures
selected.
Even
when
only
selected
four
used,
NN
maintains
a
high
prediction
performance,
suggesting
that
loss.
discuss
design
concept
sinks.
An
appropriately
structure
exhibits
improved
reduced
compared
simple
structure.
This
study
provides
new
insights
into
fabricated
AM.
Advanced Engineering Materials,
Journal Year:
2024,
Volume and Issue:
26(8)
Published: March 2, 2024
Lattice
structure
has
the
characteristics
of
lightweight,
crashworthiness,
and
better
energy
absorption
capabilities.
With
advancement
additive
manufacturing
technologies,
preparing
complex
lattice
structures
become
possible.
In
this
study,
some
novel
are
designed
by
topology
optimization
based
on
inspiration
triply
periodic
minimum
surface
structures.
The
different
volume
fraction
combined
into
four
gradient
(GLSs):
unidirectional
GLS,
bidirectional
increasing
decreasing
none
GLS
(NOGLS).
Subsequently,
selective
laser
melting
is
employed
to
manufacture
Experiments
finite‐element
simulation
analysis
utilized
evaluate
mechanical
performance
collapse
patterns
results,
it
shown
that
NOGLS
a
higher
modulus
elasticity
greater
load‐bearing
capacity
for
same
relative
density.
Furthermore,
energy‐absorbing
properties
dot‐matrix
significantly
improved
rational
density
design
strategy.
This
work
valuable
improving
Materials & Design,
Journal Year:
2022,
Volume and Issue:
224, P. 111375 - 111375
Published: Nov. 13, 2022
The
laborious
work
of
post-processing
powder
removal
from
lattice
structures
made
by
polymer
powder-based
additive
manufacturing
(AM)
process
is
still
a
major
challenge
and
requires
in-depth
study.
Here,
novel
3D
honeycomb
shaped
structure
with
ventilated
holes
bio-inspired
polyhedral
plant
cells
has
been
designed
to
eliminate
entrapment
in
constricted
inter-cellular
regions
surface-based
structure.
ventilation
enables
cross
flow
within
the
structure,
resulting
easy
complete
entrapped
powder.
computational
fluid
dynamics
(CFD)
method
was
used
understand
paths
various
surface
based
structures.
An
experimental
setup
also
calculate
flowability
these
lattices.
Finite
Element
Analysis
(FEA)
compression
tests
were
done
benchmark
strength
newly
This
innovative
can
be
biomedical,
heat-exchanger,
food
drug
delivery
systems
light-weighting
applications.
