Rapid Prototyping

8 flashcards · Other · by Liam Kehoe

1. Selective Laser Sintering (SLS)

   Selective laser sintering is a process based on the sintering of nonmetallic or metallic powders selectively into an individual object

2. Advantages of Rapid Prototyping

   Reduce product development time and cost Get products to market sooner Enhance communication between engineering marketing, manufacturing, purchasing Present physical model at critical design reviews Perform functional test before tooling Generate precise production tooling

3. Problems with Additive Rapid Prototyping

   Past accuracy Limited materials Time consuming Water absorption Sensitive to UV light

4. Inkjet based 3D printing

   The inkjet print head deposits an inorganic binder material onto a layer polymer, ceramic or metallic powder

5. Rapid Prototyping Processes and Materials

   Subtractive Removing material from a workpiece that is larger than the final part Additive Building up a part by adding material incrementally Virtual Using advanced computer-based visualization technologies Polymers Are the most commonly used material today, followed by metals and ceramics

6. Fused Deposition Modeling (FDM)

   A gantry robot controlled extruder head moves in two principal directions over a table which can be raised and lowered as needed

7. Sterelithography (SLA)

   This process is based on the principle of curing a liquid photopolymer into a specific shape The term " stereolithography" comes from the fact that the process is similar to lithography in which the image to be printed on a flat surface

8. Laminated object manufacturing

   The desired shapes are burned into the sheet with a laser, and the parts are built layer by layer Lamination implies a laying down of layers that are bonded adhesively to one another