Automotive Engineering - September 2022 - 13

TECHNOLOGY REPORT
Future of
Lightweighting:
Nemak and McMaster
University developed a
new high-strength Al
die-casting alloy that
doesn't require heat
treatment. Shown
is a shock tower
casting made of
NemAlloy HE700.
Future of Lightweighting
Nemak and McMaster University partnered to develop a new
high-strength aluminum die-casting alloy that doesn't require
heat treatment, specifically for use in automotive body-inwhite
and chassis components. NemAlloy belongs to the
7000 series Al-Zn-Mg alloy family more common to aerospace
than automotive, Dr. Glenn Byczynski, R&D manager,
Nemak USA/Canada, said at MBS. " We needed to go back to
base metallurgy and understand casting alloys more fundamentally
and how we can bring new value propositions to our
customers, " he said.
The F-temper, or as-cast, product develops yield strength in
the range of 160-170 MPa, 315 MPa ultimate strength, and
elongation above 11%, " which is quite good for an as-cast
component, " Byczynski said. " With tweaking the chemistry
slightly and adding a heat treatment, if desired, we can really
push this to nearly 400-MPa ultimate tensile strength, which
is quite good for aluminum alloys. "
Runner-up: Adient has constructed ultra-thin, reinforced
automotive seats made of thermoplastic elastomer panels.
UltraThin seating can result in 30% overall seat-trim-outline
volume reduction, 14% overall mass reduction and 10% reduction
in overall seat part count compared to standard foam,
trim and comfort systems.
Runner-up: Yanfeng's instrument panel and passenger air
bag (IP PAB) integration combines the chute and airbag module
housing into one part to lower costs and create synergies
in the development process. Through material substitution
and weight savings of 23%, the system reduces the product's
carbon footprint by 50%.
Honorable mention: AMC, csi entwicklungstechnik, DITF
and BMW M collaborated to develop a biobased automotive
center console. The NaMiKo-Project team combined methodical
lifecycle analysis and lightweight design to develop a center
console using the " NFK in 3D " filament winding process
covered with circular " smart textiles " and bio-based natural
fiber composites.
Ryan Gehm
AUTOMOTIVE ENGINEERING
September 2022 13
DIAGNOSTIC AND
TEST SOLUTIONS
BY SOFTING
NEMAK

http://info.hotims.com/82335-708

Automotive Engineering - September 2022

Table of Contents for the Digital Edition of Automotive Engineering - September 2022

Automotive Engineering - September 2022 - Intro
Automotive Engineering - September 2022 - Sponsor1
Automotive Engineering - September 2022 - CVRA
Automotive Engineering - September 2022 - CVRB
Automotive Engineering - September 2022 - CVR1
Automotive Engineering - September 2022 - CVR2
Automotive Engineering - September 2022 - 1
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Automotive Engineering - September 2022 - CVR3
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