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Stereo Lithography Process
The process begins with a 3D CAD file. The file is digitally sliced into
a series of parallel horizontal cross-sections which are then provided
to a Stereo Lithography Apparatus (SLA) one at a time. A laser traces
the cross-section onto a bath of photopolymer resin solidifying the cross-section.
The part is lowered a layer thickness into the bath and additional resin
is swept onto the surface. The laser then solidifies the next cross-section.
This process is repeated until the part is complete. Most parts are completed
in a matter of hours, thereby defined as a "Rapid Prototype".
After prototyping H.E.A.T. can provide vacuum cast urethane parts created
from RTV silicone rubber molds. Vacuum cast urethane parts are cast in
silicone rubber molds and provide an economical and fast way to simulate
injection molded plastic parts without the cost or time delay of hard
tooling. Parts are typically used for marketing, functional testing, short
run production, and pre-production parts. Choose from a wide selection
of casting urethanes to match your production material. Vacuum cast urethane
parts can be delivered in just a few days. These materials include PolyKevlar
ceramics that have been developed by H.E.A.T. for very high performance
military projects. These materials are light and very strong with excellent
surface finish quality.
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For more information on this product, contact:
David Siviter, VP Engineering Research R&D,
Phone: 410-266-8300, E-mail:
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