Materials and Manufacturing Processes,
Год журнала:
2024,
Номер
40(3), С. 402 - 414
Опубликована: Ноя. 13, 2024
Fused
Deposition
Modeling
(FDM)
is
pivotal
in
creating
functional
prototypes
and
end-use
parts,
with
Tough
PLA
emerging
as
a
favored
material
due
to
its
durability.
However,
fine-tuning
printing
process
variables
for
on
the
Ultimaker
2
+
3D
printer
remains
challenging.
This
study
employs
Taguchi
Grey
relational
analysis
optimize
these
variables.
L09
Taguchi's
systematic
approach
Relational
Grade
Analysis
(TGRGA)
investigated
Layer
Thickness
(LT),
Infill
Density
(ID),
Nozzle
Temperature
(NT)
at
varying
levels
which
response
such
Ultimate
Tensile
Strength
(UTS),
Average
hardness
(AH),
Surface
Roughness
(Ra)
are
evaluated.
Utilizing
(TGRGA),
enhancements
ultimate
tensile
strength
from
43.182
N/mm2
46.56
N/mm2,
average
64
67,
roughness
8.60
µm
8.35
achieved.
contributes
advancing
additive
manufacturing
optimization,
offering
insights
into
refining
part
production
bio
implants
like
stent
application.
Journal of Vinyl and Additive Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 18, 2025
Abstract
This
study
explores
the
optimization
of
mechanical
properties
in
3D‐printed
components
made
from
a
Polylactic
Acid
(PLA)
and
Walnut
Shell
Composite
using
Fused
Filament
Fabrication
(FFF).
Employing
machine
learning‐based
approach,
research
identifies
optimal
regression
model
for
predicting
relationships
between
printing
parameters
material
properties.
A
Taguchi
L18
design
is
used
to
minimize
experiment
count
while
accurately
determining
parameter
levels.
Testing
was
conducted
on
composite
containing
30%
walnut
shell
fibers,
with
Ultimate
Tensile
Strength
(UTS)
Elastic
Modulus
(E)
measured
as
per
ASTM
D638
standards.
Experimental
factors
included
Layer
Thickness
(LT),
Nozzle
Temperature
(NT),
Deposition
Angle
(DA),
Printing
Speed
(PS).
Using
Analysis
Variance
(ANOVA)
learning
techniques,
effects
these
UTS
E
were
evaluated.
Results
highlight
deposition
angle
dominant
parameter,
models,
especially
Random
Forest
Regression,
providing
highly
accurate
predictions.
approach
presents
novel,
data‐driven
method
optimizing
3D
processes
sustainable,
materials.
Highlights
Higher
achieved
optimized
PLA/walnut
composite.
key
element
performance
FFF
printing.
thickness
important
improve
Modulus.
Statistical
techniques
combined
sustainable
Improved
process
understanding
printed
components.
Materials Today Sustainability,
Год журнала:
2024,
Номер
26, С. 100780 - 100780
Опубликована: Март 29, 2024
In
the
context
of
seeking
sustainable
solutions
for
developing
innovative
materials
and
products
by
an
efficient
use
natural
resources
recycling
waste,
with
increasing
focus
on
circular
economy
mitigating
environmental
impact,
presents
research
aims
to
biomass
agricultural
residues
as
raw
bio
composite
production.
Specifically,
valorizing
European
hazelnut
waste
a
unique
opportunity
devise
formulations
3D
printing,
leveraging
both
mechanical
properties
aesthetic
appeal
lignocellulosic
composites.
detail,
this
work
aimed
at
investigation
new
poly(lactic
acid)
(PLA)/Hazelnut
Shell
Powder
printing
design
applications
exploiting
woody
effect
these
A
pellet
printer
was
used
bypass
filament
Three
different
Hazelnut
content
(from
10
up
30
wt%)
were
investigated
experiment
carried
out
generate
response
surfaces
able
identify
best
conditions
optimize
flexural,
tensile
impact
properties.
Finally,
three
raster
angles
(0°,
±45°
90°)
investigated.
The
configuration
was:
220
°C
nozzle
temperature,
25
mm/s
speed
angle.
With
configuration,
prototypes
ornamental
pots,
jewellery
home
furniture
produced
demonstrators.
Polymers,
Год журнала:
2025,
Номер
17(7), С. 913 - 913
Опубликована: Март 28, 2025
The
present
study
focuses
on
the
mechanical
and
viscoelastic
characterization
of
3D-printed
PLA,
fabricated
in
three
different
printing
orientations
(0°,
45°,
90°)
four
nozzle
temperatures
(210,
220,
230,
240
°C).
By
employing
a
combination
static
dynamic
analysis
(DMA)
testing,
as
well
differential
scanning
calorimetry
(DSC)
analysis,
this
work
aims
to
investigate
relationship
between
processing
parameters
resulting
properties
PLA.
DSC
results
showed
that
higher
enhance
degree
crystallinity,
which
turn
affects
behavior
Regardless
temperature,
flexural
strength
decreased
orientation
degrees
increased.
However,
it
was
found
for
same
orientation,
smaller
deviations
per
specimen.
DMA
indicated
increased,
glass
transition
temperature
(Tg)
values
increased
while
storage
modulus
decreased.
At
time,
both
cases,
by
increasing
an
increase
Tg
respective
is
observed
due
crystallinity.
Polymers,
Год журнала:
2025,
Номер
17(11), С. 1565 - 1565
Опубликована: Июнь 4, 2025
Innovations
in
additive
manufacturing
(AM)
methods
represent
a
significant
advancement
technology,
opening
new
avenues
for
creating
objects
various
shapes
and
sizes.
Fused
deposition
modeling
(FDM)
is
specialized
AM
technique
which
computers
build
layers
upon
each
other
to
form
complete
3D
object.
The
feasibility
of
producing
metal
parts
using
these
has
been
thoroughly
analyzed,
but
the
design
process
yet
catch
up
with
capabilities.
Biodegradable
aliphatic
polyester
PLA
derived
from
lactic
acid.
To
enhance
its
strength,
combined
particles,
resulting
versatile
property
improvements
applications.
While
aesthetic
functional
qualities
PLA–metal
composite
filaments
are
intriguing,
they
also
present
difficulties
related
extrusion,
equipment
wear,
maintaining
consistent
print
quality.
These
challenges
could
be
mitigated,
some
extent,
careful
tuning
hardware.
However,
inferior
mechanical
properties
bioresorbable
highlight
need
development
infilled
improve
strength
characteristics.
This
review
discusses
printing
materials
used,
their
as
matter
interest
technology.
Additionally,
applications
composites,
along
implications,
limitations,
prospects,
comprehensively
examined
this
article.
sets
stage
high-strength,
sustainable
use
range
engineering
technology
fields.
Polymer Composites,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 2, 2024
Abstract
Flax
fiber
has
emerged
as
a
promising,
eco‐friendly
alternative
to
traditional
synthetic
reinforcement
in
polymer
composites.
However,
manufacturing
biocomposites
using
three‐dimensional
(3D)
printing
technology
is
typically
accompanied
by
significant
processing
challenges
and
weak
product
performance
under
dynamic
loading
conditions.
This
study
aims
unlock
the
potential
of
3D‐printed
polylactic
acid
(PLA)
incorporating
chemically
modified
chopped
flax
fibers
thermoplastic
polyurethane
elastomer
improve
impact
strength
processability.
To
achieve
this,
we
employed
fused
deposition
modeling
(FDM)
technique
prepare
composite
specimens
for
study.
The
crystallization
behavior,
tensile
properties,
well
fracture
behavior
composites
were
investigated.
findings
suggest
that
our
approach
stands
out
because
it
not
only
facilitates
challenging
task
3D
PLA
with
additives
high
weight
fraction
aspect
ratio
but
also
results
remarkable
120%
enhancement
an
around
31.2%
increase
elongation
compared
neat
PLA,
without
compromising
elastic
modulus.
Highlights
through
alkalization
silanization.
Alkalization
significantly
enhanced
quality.
Silanization
reduced
attrition
doubled
ratio.
TPU
particles
facilitated
biocomposites.
For
first
time,
hybrid
strategy
PLA.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Ноя. 16, 2024
One
of
the
key
factors
in
manufacturing
products
by
fused
deposition
molding
(FDM)
or
layer-by-layer
printing
technology
is
material
intensity
product.
The
task
reducing
amount
required
to
manufacture
a
product
without
significant
loss
mechanical
properties
one
most
practically
important
technological
tasks.
Material
saving
FDM
allows
reduce
financial
costs
and
increase
speed
final
(or
not
significantly
reducing)
quality
In
our
work
it
demonstrated
that
using
Combs
filling
type
materials
poly
lactic
acid
(PLA)
polyethylene
terephthalate
glycol
(PETG)
possible
achieve
savings
up
23%
at
50%
for
PLA
17%
75%
PETG
reduction
strength
comparison
with
other
types.
Exceptions
are
samples
100%
fill
Lateral
fill.
Application
Kruskal-Wallis
criterion
Dunn's
Bonferroni
multiple
correction
showed
there
were
no
statistically
differences
within
limits
made
from
plastics
(p-value
=
0.0514),
as
well
Triangle
Grid
1).
Based
on
this
result,
three
groups
differing
ultimate
identified
methods
hierarchical
cluster
analysis;
each
group
(except
1,
which
included
plastic
filling),
correlation
analysis
was
performed
(Spearman
used).
results
stable
average
between
percentage
filling,
modulus
along
secant
0.05–0.2%
strain,
strain
corresponding
yield
stress.
Analysis
graph
main
parameter
correlating
all
specimen
modulus.
conclusion,
robust
regression
equations
predicting
function
constructed
two
selected
groups.
third
specimens,
more
than
twice
second
group.
detected
statistical
regularities
can
be
explained
mechanism
hardening,
actual
value
depends
structure
macrodefect
(type
volume
(percentage
filling)
used
fabrication
technology.
Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials,
Год журнала:
2024,
Номер
160, С. 106756 - 106756