SLS Selective Laser Sintering
SPG-ARRK's Selective Laser Sintering service enables the supply of tough, durable prototypes in 2-5 days from acceptance of CAD-data. Prototypes build in SLS are particularly suited to functional testing in rigorous environments including high temperatures. Such material properties are normally only achievable within 10 days in polyurethane, using tooling created from a StereoLithography master. The minimum recommended wall thickness for an SLS prototype is 0.5 mm, with little or no finishing required.
As may be expected from the world's largest prototyping company, SPG-ARRK continuously evaluates new materials, adding them to our service where appropriate.
| Selective Laser Sintering (SLS) |
| How does it work? |
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Selective Laser Sintering (SLS) allows parts with exceptional details as well as functionality close to production. Parts can be build in nylon powder (PA) or glass filled nylon (GFN). |
| Applications |
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Conceptual, mechanical, functional and assembly validation. |
| Lead time |
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Typical lead time is 3-4 days. |
| Advantages |
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Extremely tough material properties.
High heat resistance (up to 150°C).
Perfect combination between design and technical properties. |
| Disadvantages |
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Slightly granulated surface finish.
Painting finishing available but more difficult and expensive than for either SLA or milled parts. |
| Materials |
| DuraForm PA |
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Standard material for SLS. |
| Polyamide Glass-Filled |
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Material that is rigid and strong, used for most models. Excellent for models of architectural or automotive design. |
| DuraForm HST |
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Material with good heat resistance.. |
| Ex (White) |
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Material with good durablilty and excellent flexibility (high elongation at break). |
