Methods and
Technologies
(quick overview)
Most commercially available rapid prototyping
machines use one of six techniques. At present,
trade restrictions severely limit the import/export
of rapid prototyping machines, so this guide
only covers systems available in the U.S.
Rapid prototype techniques have developed from
experimental techniques into invaluable development
tools for engineers. Many companies are now
using the capabilities of rapid prototyping
to speed up the development and time to market
of their products. Rapid prototyping utilises
an ever increasing range of materials, from
epoxy resins to ceramics and metals.
The main rapid
prototyping processes and techniques are:
SLA - Stereolithography
SLS - Selective Laser Sintering
FDM - Fused Disposition Modeling
LOM - Laminated Object Manufacturing
CNC - Computer Numerically Controlled Machining
These techniques can be used to construct models
for use as casting patterns or functional prototypes
that can help engineers to visualise their designs
before production. Experimental analysis, such
as flow visualisation and stress analysis, can
be used to determine prototype part characteristics.
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