Tech Briefs Magazine - July 2021 - 19

Parts. And they're changing the title to
replace Recycling with Reuse.
It's true some processes generate spatter
that can't be reused; even in binder
jetting, some stray satellites can form
agglomerates that get sieved out. But in
many powder-based AM processes, that's
not what happens to the bulk of any given
powder batch. For almost every powder
in every process, powder can be circulated
through the system several times
before it must be recycled, as demonstrated
in the research paper cited above.
That's where the conversation gets
interesting at SAE. The committee came
to a consensus that we need to change the
way we write these standards moving forward.
We don't recycle powder, we reuse it,
and that will be the term. That's a big difference
for such a small word. It's another
compelling reason to switch to AM and
how the true green benefits might be
more than you think at first blush - especially
if you're picturing " True Recycling "
every time you hear about de-powdering
and reconditioning your powder.
Powder reuse is an activity that happens
onsite as a natural part of the techvvvvv
We're
ready for you.
AUXILIARY POWER
APU (Auxiliary Power Unit)
SGCU (Starter/Generator Control Unit)
CABIN SYSTEMS
In-Flight Entertainment
Wi-Fi
Video On-Demand on Seats
Galley Equipment
Lighting Systems
FLIGHT DECK
Control & Display System
Communication Navigation and Identification
Black Box
Traffic Collision Avoidance System
nology. ExOne is designing systems with
provisions for maintaining consistent
levels of humidity, blending of virgin
and recovered powder, and establishing
a consistent and stable flow of powdered
materials into printers. It's been found
in binder jetting that this mixture results
in a more consistent process. But what
we really need to do in all of additive is a
comprehensive value stream map and
that's the type of scholarly work being
started now by AMGTA.
All of this is a long way to say that
binder jetting's sustainability benefits
have great potential, save energy by consolidating
many assembled parts and
processes into one, and can deliver enduse
designs that are 30 to 40% lighter for
more efficient cars, planes, military
equipment, and other applications. Bind -
er jetting technology prints complex
designs by selectively applying binder to
foundry-grade sand, layer by layer, to
build up a geometry, as shown in the figure
on the opposite page.
Additive manufacturing lets you use
less material to start with by only using
powder to build the desired shape
instead of creating chips by subtracting
material. In binder jet 3D printing, the
printer uses a digital file to quickly inkjet
a binder into a thin layer of powder particles,
creating a solid part one layer at a
time and reducing material waste to less
than 5%. Metal, sand, or ceramics are all
processed.
After finished prints are removed
from the powder bed, the unbound
material is processed in-house by the
customer for reuse in subsequent builds
to avoid resource-intensive recycling as
much as possible.
New part geometries are possible without
the manufacturability limitations of
traditional technologies. Components
redesigned for binder jet 3D printing
that take advantage of Design for Ad -
ditive Manufacturing (DfAM) principles
commonly reduce their weight 30 to
50%. These benefits lead to more innovative,
lightweight, and sustainable products
that require less material.
This article was written by Dan Brunermer,
Technical Fellow, ExOne, North Huntingdon,
PA. For more information, visit http://info.
hotims.com/79415-124.
ENGINE SYSTEMS
ECU (Engine Control Unit)
Fuel Management System
AVIONICS
IMA (Integrated Modular Avionics)
AFDX E/S (Aircraft Full Duplex End-System)
NAVIGATION and FLIGHT CONTROL
FCU (Flight Control Unit)
GPS
Inertial Guidance System
Our power and signal magnetics
support systems on the world's
elite platforms - from tip to tail.
vwww.inrcore.com/commercial-aerospace/
Tech Briefs, July 2021
Free Info at http://info.hotims.com/79415-733
Cov
ToC
19
http://info.hotims.com/79415-124 http://info.hotims.com/79415-733 http://www.abpi.net/ntbpdfclicks/l.php?202107TBNAV

Tech Briefs Magazine - July 2021

Table of Contents for the Digital Edition of Tech Briefs Magazine - July 2021

Tech Briefs Magazine - July 2021 - Intro
Tech Briefs Magazine - July 2021 - Sponsor
Tech Briefs Magazine - July 2021 - Cov1
Tech Briefs Magazine - July 2021 - Cov2
Tech Briefs Magazine - July 2021 - 1
Tech Briefs Magazine - July 2021 - 2
Tech Briefs Magazine - July 2021 - 3
Tech Briefs Magazine - July 2021 - 4
Tech Briefs Magazine - July 2021 - 5
Tech Briefs Magazine - July 2021 - 6
Tech Briefs Magazine - July 2021 - 7
Tech Briefs Magazine - July 2021 - 8
Tech Briefs Magazine - July 2021 - 9
Tech Briefs Magazine - July 2021 - 10
Tech Briefs Magazine - July 2021 - 11
Tech Briefs Magazine - July 2021 - 12
Tech Briefs Magazine - July 2021 - 13
Tech Briefs Magazine - July 2021 - 14
Tech Briefs Magazine - July 2021 - 15
Tech Briefs Magazine - July 2021 - 16
Tech Briefs Magazine - July 2021 - 17
Tech Briefs Magazine - July 2021 - 18
Tech Briefs Magazine - July 2021 - 19
Tech Briefs Magazine - July 2021 - 20
Tech Briefs Magazine - July 2021 - 21
Tech Briefs Magazine - July 2021 - 22
Tech Briefs Magazine - July 2021 - 23
Tech Briefs Magazine - July 2021 - 24
Tech Briefs Magazine - July 2021 - 25
Tech Briefs Magazine - July 2021 - 26
Tech Briefs Magazine - July 2021 - 27
Tech Briefs Magazine - July 2021 - 28
Tech Briefs Magazine - July 2021 - 29
Tech Briefs Magazine - July 2021 - 30
Tech Briefs Magazine - July 2021 - 31
Tech Briefs Magazine - July 2021 - 32
Tech Briefs Magazine - July 2021 - 33
Tech Briefs Magazine - July 2021 - 34
Tech Briefs Magazine - July 2021 - 35
Tech Briefs Magazine - July 2021 - 36
Tech Briefs Magazine - July 2021 - 37
Tech Briefs Magazine - July 2021 - 38
Tech Briefs Magazine - July 2021 - 39
Tech Briefs Magazine - July 2021 - 40
Tech Briefs Magazine - July 2021 - 41
Tech Briefs Magazine - July 2021 - 42
Tech Briefs Magazine - July 2021 - 43
Tech Briefs Magazine - July 2021 - 44
Tech Briefs Magazine - July 2021 - 45
Tech Briefs Magazine - July 2021 - 46
Tech Briefs Magazine - July 2021 - 47
Tech Briefs Magazine - July 2021 - 48
Tech Briefs Magazine - July 2021 - 49
Tech Briefs Magazine - July 2021 - 50
Tech Briefs Magazine - July 2021 - 51
Tech Briefs Magazine - July 2021 - 52
Tech Briefs Magazine - July 2021 - 53
Tech Briefs Magazine - July 2021 - 54
Tech Briefs Magazine - July 2021 - 55
Tech Briefs Magazine - July 2021 - 56
Tech Briefs Magazine - July 2021 - Cov3
Tech Briefs Magazine - July 2021 - Cov4
https://www.nxtbook.com/smg/techbriefs/22TB05-P
https://www.nxtbook.com/smg/techbriefs/22TB05-D
https://www.nxtbook.com/smg/techbriefs/22TB04
https://www.nxtbook.com/smg/techbriefs/22TB03
https://www.nxtbook.com/smg/techbriefs/22TB02
https://www.nxtbook.com/smg/techbriefs/22TB01
https://www.nxtbook.com/smg/techbriefs/21TB12
https://www.nxtbook.com/smg/techbriefs/21TB11
https://www.nxtbook.com/smg/techbriefs/21TB10
https://www.nxtbook.com/smg/techbriefs/21TB09
https://www.nxtbook.com/smg/techbriefs/21TB08
https://www.nxtbook.com/smg/techbriefs/21TB07
https://www.nxtbook.com/smg/techbriefs/21TB06
https://www.nxtbook.com/smg/techbriefs/21TB05
https://www.nxtbook.com/smg/techbriefs/21TB04
https://www.nxtbook.com/smg/techbriefs/21BT03
https://www.nxtbook.com/smg/techbriefs/21TB02
https://www.nxtbookmedia.com