Dimensional stability of parts manufactured by additive technologies
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Tato práce se zaměřuje především na analýzu dlouhodobé rozměrové a tvarové stability dílů vyráběných aditivní technologií (pomocí 3D tisku). Dále je pozornost věnována technologiím 3D tisku, principům použití, vlastnostem materiálů používaných pro 3D tisk a parametrům, které ovlivňují dlouhodobou rozměrovou stabilitu. Modely pro testování byly vyrobeny různými technologiemi 3D tisku, jako jsou FDM, PolyJet, SLS a SLA. Vzorky byly skenovány pomocí bezdotykového skeneru ATOS II 400 a vyhodnocovány v SW GOM Inspect Professional V8. Digitalizovaná data byla porovnávána jak s nominálním CAD modelem, tak především s naskenovanými daty, které byly pořízeny ihned po vytištění vzorků. Tímto způsobem byla provedena inspekce modelů 3 měsíce po vytištění, po roce od vytištění a po roce a testu 1 (cyklické zatížení vlhkostí a teplotou) a testu 2 (vystavení vzorků UV záření). Výsledky byly analyzovány jak s ohledem na stárnutí v čase, použité technologii a materiálu, tak z pohledu účinků testu 1 a 2.
This thesis mainly focuses on an analysis of the long-term dimensional stability of parts produced by additive technology (using 3D printing). Firstly, the study about the 3D printing technology was done like how it works, which principle is used and which materials could be used for printing. Furthermore, the detailed study about the material properties and which parameters will affect for long-term dimensional stability. A year ago, models were already manufactured by different additive technologies such as FDM, Polyjet, SLS, and SLA. These models were scanned by using 3D contactless scanner ATOS II 400 and inspected by GOM Inspect Professional. An inspection was done with duration of time like 3 months, after a year and after a year with standard test-1 is called humidity and temperature and standard test-2 is called UV radiation. Then this analysis of measurement was compared with CAD and first day of models printing. Based on this analysis and from point of view of ageing with respect of time, which technology and material will have good dimensional and shape stability is discussed. Furthermore, some of parameters were taken into account such as an effect of the technology used, the 3D printer used and the effect of test-1 and test-2.
This thesis mainly focuses on an analysis of the long-term dimensional stability of parts produced by additive technology (using 3D printing). Firstly, the study about the 3D printing technology was done like how it works, which principle is used and which materials could be used for printing. Furthermore, the detailed study about the material properties and which parameters will affect for long-term dimensional stability. A year ago, models were already manufactured by different additive technologies such as FDM, Polyjet, SLS, and SLA. These models were scanned by using 3D contactless scanner ATOS II 400 and inspected by GOM Inspect Professional. An inspection was done with duration of time like 3 months, after a year and after a year with standard test-1 is called humidity and temperature and standard test-2 is called UV radiation. Then this analysis of measurement was compared with CAD and first day of models printing. Based on this analysis and from point of view of ageing with respect of time, which technology and material will have good dimensional and shape stability is discussed. Furthermore, some of parameters were taken into account such as an effect of the technology used, the 3D printer used and the effect of test-1 and test-2.
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Aditivní technologie, FDM, PolyJet, Selective Laser Sintering (SLS), Stereolitografie (SLA), 3D optický skener, 3D digitalizace, Additive technology, Fused deposition modeling (FDM), Polyjet, Selective Laser Sintering (SLS), Stereolithography (SLA), 3D optical scanner, 3D digitization