SAE Update - January 2022 - 18

TECH FOCUS:
MATERIALS
Holistic materials selection
layers between the materials that
may either protect against or
exacerbate material degradation.
Wear can cause significant
shortfalls in the life and
operability of components. The
context of a design in terms of
surrounding materials must be
communicated for an effective
selection process.
Another area of materials
selection that is often overlooked
is the economic constraints of a
material choice. Engineers,
procurement professionals, and
organizations often consider the
cost of a material to be the sole
economic criterion. In addition to
this consideration, there are many
supply chain criteria that can be
applied, including availability,
lead time, coating or surface
necessity, and location
interchange. Availability includes
whether a specific material can
be readily purchased. Lead time is
the amount of idle time necessary
before the material can be
reasonably obtained for
subsequent processing. Certain
materials require surface
treatment such as application of
coating to reduce susceptibility to
corrosion or other harsh
environments. Location
interchange may require the
18
January 2022
Engineering Tundra's body and cargo bed called for a mixed-materials
execution. Aluminum is used for the hood, front doors, and aluminum deck
outer. There are steel fenders, bumper, and tailgate. The bed is constructed
of sheet molded compound (SMC).
movement of a material between facilities to
implement specific processing techniques.
Standards
One often misunderstood area is the arena of
Standards and Specifications that are utilized to
describe and order material for a part. SAE provides
AMS specifications for many materials and processes
that can be utilized for design. The language and
requirements from these specifications are frequently
understood by design organizations and material
suppliers alike and are effective at listing what is
necessary to properly order and obtain material. Often,
the materials specifications provide both a product
form (e.g., sheet, plate, tube, pipe) and a chemical
composition (grade) (e.g., SST 304, SST 316, Al 6061, IN
718). These specifications also describe the final
condition in which a material is delivered. Specifications
UPDATE
Toyota

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
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