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4. In-vessel photopolymerization
At the start of the process, a thin layer of liquid photosensitive resin coats the printing plate. UV radiation directed onto the surface of the resin selectively polymerizes parts of the liquid layer, solidifying it. The next step is to form a new layer of resin on top of the previous one, again locally cross-linking the areas of interest. The part is formed by repeating the process iteratively (figure 5 ). As the part is formed, the resin level in the tank increases. At the end of printing, the solid part is immersed in a tank filled with non-crosslinked resin.
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In-vessel photopolymerization
Conclusion
Bibliography
Standards and norms
- Additive manufacturing – Design – Requirements, guidelines and recommendations. - NF EN ISO/ASTM 52910 - Mars 2020
- Additive manufacturing – Safety, health and environment – Requirements for metallic materials. - XP E67-006 - Juillet 2020
Regulations
Council Directive 89/391/EEC of June 12, 1989 on the introduction of measures to encourage improvements in the safety and health of workers at work (OJEC L. 183 of June 29, 1989, CELEX :31989L0391).
Directive 2014/34/EU of the European Parliament and of the Council of February 26, 2014 on the harmonization of the laws of the Member States concerning equipment and protective systems intended for use...
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