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What Is
Stereolithography?
Stereolithography (SLA)
is a "Rapid
Prototyping " process which produces a
physical, three dimensional object , a "conceptual model" or
"master pattern"!
Always
produced from computer solid model, "3D CAD file", "master
model".
A
stereolithography machine uses a computer controlled laser to
cure a photo-sensitive resin, layer by layer, to create the 3D
part.
Producing a
pre-production SLA prototype of a part can greatly enhance the
geometric visualization of a product, as well as communication
between project team members.
Stereolithography is fast, allowing prototypes to be made in a
matter of days, and the complexity of the model is seldom a
factor.
Benefits of
Stereolithography
-
Crisp,
highly-detailed pieces
-
Speed
of delivery (usually 2-3 days)
-
Tolerances within .004"/inch
Best
Applications of SLA Technology
Stereolithography master models can also be used for "master
patterns" when it comes time for metal castings and are easily
modified to accommodate any last minute changes. Additionally,
SLA models can be used for photo-optic stress analysis as well
as dynamic vibrational analysis, which further extends
engineering design capabilities.
SLA is really
"Rapid Modeling" since the objects generated
from existing photo-sensitive resins or photo polymers do not
have the physical, mechanical or thermal properties typically
required of end use production material. There is much ongoing
research and development in the area of durable materials.
Rapid
Prototyping is the next step in fast, cost effective part
production. This is cutting edge technology, which can be
applied to almost every industry, including oil refining,
petrochemical, power, marine, and municipal and medical.
Stereolithography can be a very practical and useful process in
many situations.
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