2. Material projection
A photopolymer is sprayed in drop form onto a printing plate. Once deposited on the plate, the photosensitive material is cross-linked under UV light to solidify it. The rest of the process consists of spraying new drops, possibly of a different composition, on top of the previous ones, and building up the required part layer by layer (figure 2 ). At the end of the printing process, the printed part is separated from the tray and can undergo post-processing (removal of supports) and finishing steps (coloring, for example).
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Material projection
Layer lamination
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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