Selective Laser
Sintering Materials
DuraForm PA (Polyamide)
•DuraForm
PA material is ideal for parts with superior surface quality,
fine details and functional features such as living hinges and
snap-fit connections. Plus DuraForm PA material can be used
for modeling and testing surgical devices and can be sterilized
with an autoclave. This SLS material is by far the most common
material used in SLS; parts have good long term stability, offering
resistance to most chemicals. It is harmless to the environment
and safe to use with foodstuff. Complexity is irrelevant and
the material delivers the impact strength and durability required
for functional testing. Tensile and flexural strength combine
to make tough prototypes, with the flex associated with many
production thermoplastics. The material is non-hygroscopic,
thereby negating the requirement to seal the surface on components
being used with liquids.
GF (Glass-filled) Nylon
•DuraForm GF Nylon material's increased
stiffness, heat resistance and mechanical integrity make it
perfect material for extreme testing conditions, e.g. DuraForm
connector with snap fits, hinges and locking cams recently withstood
temperature up to 100°C and an electrical charge of 460
Amps. This SLS material provides greater rigidity hence the
glass-filled blend is perfect when prototyping rigid parts intended
for production in advanced engineered thermoplastics, and is
the right choice for functional testing. Form, fit and functional
testing can now be completed without sacrifice. The filler is
glass bead and not fiber. Hence the part predominantly increases
in stiffness but not strength Material is non-hygroscopic, thereby
negating the requirement to seal the surface on components being
used with liquids.
Benefits
Durable parts without tooling
Heat and chemical resistant, Machinable, weldable and has excellent
surface quality
High feature definition and detail, High durability and stability
CastForm PS (Polystyrene)
•This is a Polystyrene material
which can be used as a sacrificial master for investment casting
purposes. The CAD design’s tooling is manufactured directly
in this material and the component then treated sacrificially
comparable to wax in investment casting. For complex or short
lead-time items, this can offer significant speed and cost
savings. Subsequent work has highlighted how well this material
functions as a master pattern for Vacuum Casting as an alternative
to Stereolithography.
Benefits
•Produce complex investment casting patterns
- directly from CAD files, without tooling
•CastForm PS materials are low density (45% dense) and
compatible with autoclaves, low-temperature furnaces, vacuum
plaster casting methods.
•CastForm material's low ash content (<0.02%) makes
it ideal for patterns for casting reactive metals such as titanium,
aluminum, magnesium and zinc.
• Direct from CAD file to pattern - no tooling or machining
required.
•Quick and easy pattern removal, low density and ash contents.
•Compatible with standard foundry practices
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