SAE Update - September 2021 - 10

FOCUS: ADVANCED
MANUFACTURING
Advanced manufacturing in
the context of aerospace
Regardless of the precursor, the fundamental process
is to add material layer-by-layer as defined by the
geometry of a digital three-dimensional computeraided
design (CAD) model. The two most popular
metal modalities in aerospace are powder bed fusion
(PBF) and directed energy deposition (DED). The
latter can use either powder or wire.
Although less prominent in aerospace, the most
common polymer additive manufacturing modality is
fused filament fabrication (FFF) that extrudes a
molten thermoplastic. Currently, companies are
investigating the use of continuous fiber for
reinforcement. This would allow polymers to
eventually be used as structural parts with tailored
anisotropic mechanical properties. The greatest
advantage of additive manufacturing is the unique
geometries afforded. For
aerospace, this ultimately
translates to strong and durable
lightweight parts that would be
difficult, if not impossible, to
machine.
The factory-of-the-future will
GE Additive's meter-class, laser powder-bed fusion machine has been
developed to provide aerospace, automotive, and other manufacturers of
large parts and components with a scalable solution that can be
customized.
10
September 2021
necessarily include one or more
of these four aforementioned
technologies, in conjunction with
other emerging advancements
(e.g. augmented reality, virtual
reality (AR/VR)). Each, though, is
at a different technology
readiness level (TRL). Curiously,
aerospace manufacturing lags
other industries. The most
advanced manufacturing
ecosystem likely belongs to the
semiconductor industry. Even
automotive is decades ahead of
aerospace, given automotive's
focus on high-rate production
and its preoccupation with
efficiency and statistical process
control (SPC). It also enjoys
shorter product-development
and product-life cycles relative to
aerospace that foster greater
factory innovation.
Independent of industry,
modeling and simulation,
particularly in the form of model
based systems engineering
(MBSE), is driving facilities
toward integrated digital
UPDATE
GE Additive

SAE Update - September 2021

Table of Contents for the Digital Edition of SAE Update - September 2021

SAE Update - September 2021 - Cov1
SAE Update - September 2021 - Cov2
SAE Update - September 2021 - 1
SAE Update - September 2021 - 2
SAE Update - September 2021 - 3
SAE Update - September 2021 - 4
SAE Update - September 2021 - 5
SAE Update - September 2021 - 6
SAE Update - September 2021 - 7
SAE Update - September 2021 - 8
SAE Update - September 2021 - 9
SAE Update - September 2021 - 10
SAE Update - September 2021 - 11
SAE Update - September 2021 - 12
SAE Update - September 2021 - 13
SAE Update - September 2021 - 14
SAE Update - September 2021 - 15
SAE Update - September 2021 - 16
SAE Update - September 2021 - 17
SAE Update - September 2021 - 18
SAE Update - September 2021 - 19
SAE Update - September 2021 - 20
SAE Update - September 2021 - 21
SAE Update - September 2021 - 22
SAE Update - September 2021 - 23
SAE Update - September 2021 - 24
SAE Update - September 2021 - 25
SAE Update - September 2021 - 26
SAE Update - September 2021 - 27
SAE Update - September 2021 - 28
SAE Update - September 2021 - 29
SAE Update - September 2021 - 30
SAE Update - September 2021 - 31
SAE Update - September 2021 - 32
SAE Update - September 2021 - 33
SAE Update - September 2021 - 34
SAE Update - September 2021 - 35
SAE Update - September 2021 - 36
SAE Update - September 2021 - 37
SAE Update - September 2021 - 38
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