Producing Green Steel Locally in Renewables-Rich Developing Regions Enhances Socioeconomic and Climate Benefits
Published: Jan. 1, 2025
Language: Английский
Long-Term Performance Analysis of PCD Tools in the Milling of Aluminium Alloy Components in a Manufacturing Context
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 21, 2025
Abstract
Aluminium
alloy
components
are
gaining
traction
in
the
automotive
industry
due
to
their
lightweight
properties,
contributing
improved
fuel
efficiency
and
reduced
emissions.
Many
of
these
demand
specific
surface
roughness
profiles
achieved
through
milling
operations.
However,
excess
material
from
upstream
processes—such
as
flash
remaining
after
demoulding
—presents
challenges
for
machining
process.
These
irregularities,
combined
with
stringent
demands
roughness,
burr-free
edges,
flatness,
require
careful
selection
tool
microgeometry,
grade,
cutting
parameters.
Nonetheless,
research
concerning
behaviour
PCD
tools
when
aluminium
alloys
remains
limited,
existing
studies
often
fail
address
complexities
high-volume
production.
This
study
investigates
polycrystalline
diamond
(PCD)
performance
high-speed
an
eight-month
production
analysis
comparing
grades
microgeometries.
The
reveals
that
medium-sized
grains
lead
superior
quality
a
22%
longer
life.
Tools
larger
tip
radii
(0.09
mm
versus
0.06
mm)
demonstrated
significantly
higher
performance,
reducing
burr
formation
by
20%
while
maintaining
lower
values.
Insert
height
positioning
emerged
critical
factor,
since
deviations
between
insert
heights
substantially
extended
life
ensured
consistent
roughness.
findings
provide
practical
criteria
directly
impacting
cost-efficiency
component
manufacturing.
Language: Английский
Reducing greenhouse gas emissions in China’s automobile manufacturing with circular economy strategies
Xin Tong,
No information about this author
Jian Gao,
No information about this author
Tao Wang
No information about this author
et al.
Carbon Footprints,
Journal Year:
2024,
Volume and Issue:
3(4)
Published: Dec. 28, 2024
Circular
economy
strategies
encompass
a
wide
range
of
approaches
and
initiatives
designed
to
foster
sustainable
resource
utilization
minimize
waste,
particularly
in
the
context
complex
products
such
as
automobiles.
These
encompass,
among
others,
material
recycling
reuse,
energy
recovery,
efficiency
enhancements,
circular-focused
product
design.
To
evaluate
potential
different
circular
reduce
greenhouse
gas
emissions
China’s
automobile
manufacturing,
this
research
employs
input-output
subsystems
approach
analyze
three
distinct
scenarios
based
on
interconnections
between
various
components:
low-carbon
transition
structure,
closed-loop
recycling,
shared
mobility.
The
findings
reveal
that
spillover
component
account
for
over
98%
total
manufacturing
sector.
model,
through
can
significantly
cut
down
from
these
components,
thereby
aiding
industry
meeting
its
emission
reduction
targets.
Notably,
compared
relying
solely
scenario
by
approximately
10%
steel
plastics
alone.
Moreover,
mobility
has
achieve
an
additional
4%-18%
diminishing
final
demand
automotive
products.
Language: Английский