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Understanding Stereolithography: Benefits, Applications, and Comparisons

Stereolithography (SLA) is a rapid prototyping process that creates physical 3D objects from CAD files by hardening liquid photopolymer. SLA offers superior surface quality and dimensional precision compared to FDM. Its benefits include cost-saving, time efficiency, error detection, and design improvement in various industries.

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Understanding Stereolithography: Benefits, Applications, and Comparisons

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  1. Stereolithography Prepared by SinLei Lim 11/9/2001

  2. What is Stereolithography (SLA)? • A "rapid-prototyping" process which produces a physical, three dimensional object from a 3D CAD file. • Based on the principle of curing (hardening) a liquid photopolymer into a specific shape.

  3. Comparison Between SLA and FDM (Fused Deposition Modeling) • Precision of Dimensions

  4. Surface Quality • roughness of the untreated surfaces of SLA components >103 better than FDM components. • Dimension Change with Humidity • permanent changes in the dimensions occur when SLA components stored under humid conditions.

  5. Crisp, highly-detailed pieces Speed of delivery (usually 2-3 days) Tolerances within .005"/inch Save Money Save Time Test Product Catch Errors Improve Design Sell Product Rapid Manufacturing Benefits of SLA

  6. SLA Materials

  7. Applications of SLA Technology • Aesthetic & conceptual models • Parts requiring detail & accuracy • Master patterns for castings and secondary processes

  8. Conclusions • Stereolithography is fast and effective. • Stereolithography can be applied to almost every industry, including oil refining, petrochemical, power, marine, and municipal • Stereolithography saves time, money, allows speed delivery, and improve designs

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