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Estercolitografia

English translation: stereolithography

04:03 Jul 17, 2007
Spanish to English translations [PRO]
Tech/Engineering - Manufacturing
Spanish term or phrase: Estercolitografia
Found in course description under CASTING.
Content:
"Definicion del proceso de fundicion...., Modelos y moldes, tecnicas modernas de fabricacion de modelos y prototipo por Estercolitografia. Procesos de fundicion...
Carolina Ramirez
Canada
Local time: 12:29
English translation:stereolithography
Explanation:
Stereolithography is a common rapid manufacturing and rapid prototyping technology for producing parts with high accuracy and good surface finish. A device that performs stereolithography is called an SLA or Stereolithography Apparatus.
Stereolithography is an additive fabrication process utilizing a vat of liquid UV-curable photopolymer "resin" and a UV laser to build parts a layer at a time. On each layer, the laser beam traces a part cross-section pattern on the surface of the liquid resin. Exposure to the UV laser light cures, or, solidifies the pattern traced on the resin and adheres it to the layer below.
After a pattern has been traced, the SLA's elevator platform descends by a single layer thickness, typically 0.05 mm to 0.15 mm (0.002" to 0.006"). Then, a resin-filled blade sweeps across the part cross-section, recoating it with fresh material. On this new liquid surface the subsequent layer pattern is traced, adhering to the previous layer. A complete 3-D part is formed by this process. After building, parts are cleaned of excess resin by immersion in a chemical bath and then cured in a UV oven.
Stereolithography requires the use of support structures to attach the part to the elevator platform and to prevent certain geometry from not only from deflecting due to gravity, but to also accurately hold the 2d Cross-sections in place such that they resist lateral pressure from the re-coater blade. Supports are generated automatically during the preparation of 3-D CAD models for use on the stereolithography machine, although they may be manipulated manually. Supports must be removed from the finished product manually; this is not true for all rapid prototyping technologies.
Selected response from:

Fabio Descalzi
Uruguay
Local time: 13:29
Grading comment
4 KudoZ points were awarded for this answer



Summary of answers provided
3 +1stereolithography
Fabio Descalzi


Discussion entries: 1





  

Answers


8 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +1
stereolithography


Explanation:
Stereolithography is a common rapid manufacturing and rapid prototyping technology for producing parts with high accuracy and good surface finish. A device that performs stereolithography is called an SLA or Stereolithography Apparatus.
Stereolithography is an additive fabrication process utilizing a vat of liquid UV-curable photopolymer "resin" and a UV laser to build parts a layer at a time. On each layer, the laser beam traces a part cross-section pattern on the surface of the liquid resin. Exposure to the UV laser light cures, or, solidifies the pattern traced on the resin and adheres it to the layer below.
After a pattern has been traced, the SLA's elevator platform descends by a single layer thickness, typically 0.05 mm to 0.15 mm (0.002" to 0.006"). Then, a resin-filled blade sweeps across the part cross-section, recoating it with fresh material. On this new liquid surface the subsequent layer pattern is traced, adhering to the previous layer. A complete 3-D part is formed by this process. After building, parts are cleaned of excess resin by immersion in a chemical bath and then cured in a UV oven.
Stereolithography requires the use of support structures to attach the part to the elevator platform and to prevent certain geometry from not only from deflecting due to gravity, but to also accurately hold the 2d Cross-sections in place such that they resist lateral pressure from the re-coater blade. Supports are generated automatically during the preparation of 3-D CAD models for use on the stereolithography machine, although they may be manipulated manually. Supports must be removed from the finished product manually; this is not true for all rapid prototyping technologies.


    Reference: http://en.wikipedia.org/wiki/Stereolithography
Fabio Descalzi
Uruguay
Local time: 13:29
Native speaker of: Native in SpanishSpanish
PRO pts in category: 8

Peer comments on this answer (and responses from the answerer)
agree  Rachel Fell
7 hrs
  -> Thanks Rachel
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