SAE Update - January 2022 - 22

TECH FOCUS:
MATERIALS
Additive manufacturing advancing
on multiple fronts, says expert
SAE International consultant John E Barnes is an expert
in additive manufacturing (AM), having founded The
Barnes Global Advisors in 2017. Maturing and
industrializing additive manufacturing is the company's
mission, for which Barnes serves as managing director.
In addition to running his own company, Barnes is an
adjunct professor at both Carnegie Mellon University
and Royal Melbourne Institute of Technology.
He agreed to answer a few questions from Update.
Is additive manufacturing used more as a product
development tool than a production tool?
Yes, this is more true than not; however, within mobility
where quantities are smaller, AM is becoming more of
the rule than the exception. If you start with space and
then defense applications, these industries have or are
adopting AM as the default for certain applications.
Aerospace is next, where use of more " exotic " alloys are
commonplace and where 'buy to fly' is an issue, the use
of AM is increasing. In the broader transportation field,
AM is making inroads into even locomotives where
designs can be improved and where quantities are not
high annually. Fundamentally, the ability to design for
AM is more of the fundamental limitation, because it is
not widely understood and is intrinsically correlated
with cost and being able to make a business case. In
most cases, taking weight out also reduces cost
because you use less material.
Are advances in AM driven more by innovation in
materials or innovation in equipment?
We are seeing advances on multiple fronts. First is
productivity and we are seeing drastic improvements in
22
January 2022
John E Barnes
repeatability as well as
productivity. Higher throughput
for parts is now equating to lower
costs per part. This capability
pushes on the other front, which
is the engineer's ability to design
for the process. When more
engineers know how to design for
AM broadly, the cost story will get
better. When the various AM
process technologies get more
mature (Powder Bed Fusion,
Directed Energy Deposition,
Binder Jetting et al) and when
companies are more aware of the
design space, they will know
when to use which process
UPDATE

SAE Update - January 2022

Table of Contents for the Digital Edition of SAE Update - January 2022

SAE Update - January 2022 - Cov1
SAE Update - January 2022 - Cov2
SAE Update - January 2022 - 1
SAE Update - January 2022 - 2
SAE Update - January 2022 - 3
SAE Update - January 2022 - 4
SAE Update - January 2022 - 5
SAE Update - January 2022 - 6
SAE Update - January 2022 - 7
SAE Update - January 2022 - 8
SAE Update - January 2022 - 9
SAE Update - January 2022 - 10
SAE Update - January 2022 - 11
SAE Update - January 2022 - 12
SAE Update - January 2022 - 13
SAE Update - January 2022 - 14
SAE Update - January 2022 - 15
SAE Update - January 2022 - 16
SAE Update - January 2022 - 17
SAE Update - January 2022 - 18
SAE Update - January 2022 - 19
SAE Update - January 2022 - 20
SAE Update - January 2022 - 21
SAE Update - January 2022 - 22
SAE Update - January 2022 - 23
SAE Update - January 2022 - 24
SAE Update - January 2022 - 25
SAE Update - January 2022 - 26
SAE Update - January 2022 - 27
SAE Update - January 2022 - 28
SAE Update - January 2022 - 29
SAE Update - January 2022 - 30
SAE Update - January 2022 - 31
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SAE Update - January 2022 - 33
SAE Update - January 2022 - 34
SAE Update - January 2022 - 35
SAE Update - January 2022 - 36
SAE Update - January 2022 - 37
SAE Update - January 2022 - 38
SAE Update - January 2022 - 39
SAE Update - January 2022 - 40
SAE Update - January 2022 - 41
SAE Update - January 2022 - 42
SAE Update - January 2022 - 43
SAE Update - January 2022 - 44
SAE Update - January 2022 - 45
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