TY  - CONF
AU  - Milovanović, Aleksa
AU  - Montanari, Matteo
AU  - Brighenti, Roberto
AU  - Sedmak, Aleksandar
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7373
AB  - Vat photopolymerization is an Additive Manufacturing (AM) technology that enables the production of dimensionally accurate components. Due to its accuracy, this technology has led to the development of various sub-types, each with different methods of introducing UV light to the liquid resin in the vat. UV light can be introduced through a mirror system (SLA), a projector (DLP), or an LCD screen that acts as a photomask over a projector’s light, allowing for the curing of the entire layer in one pass (MSLA). The material of interest in this study is a standard translucent resin used in MSLA, with a UV light wavelength of 405 nm. Previous extensive mechanical characterization of this material has shown a high dependence on the final component properties on layer thickness and curing times.
The objective of this research is to analyse the time-dependent behaviour of these materials. Specifically, closed-loops compression tests have been conducted, subjecting the material to loading and unloading sequences at strain levels of 5 and 25 %. To clarify, a strain level of 5 % falls within the elastic region of the material, while a strain level of 25 % is considerably within the plastic region. Various testing speeds were applied, namely 1, 5, 10, 25, and 100 mm/min. The influence of testing speed on the materials’ energy absorption capacity is evident. The highest difference is observed between 10 and 25 mm/min, indicating that the material’s ability to store energy is significantly reduced after a testing speed of 10 mm/min.
C3  - International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor)
T1  - Time-dependent behaviour of photosensitive resins in mSLA technology
SP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7373
ER  - 

@conference{
author = "Milovanović, Aleksa and Montanari, Matteo and Brighenti, Roberto and Sedmak, Aleksandar and Milošević, Miloš",
year = "2023",
abstract = "Vat photopolymerization is an Additive Manufacturing (AM) technology that enables the production of dimensionally accurate components. Due to its accuracy, this technology has led to the development of various sub-types, each with different methods of introducing UV light to the liquid resin in the vat. UV light can be introduced through a mirror system (SLA), a projector (DLP), or an LCD screen that acts as a photomask over a projector’s light, allowing for the curing of the entire layer in one pass (MSLA). The material of interest in this study is a standard translucent resin used in MSLA, with a UV light wavelength of 405 nm. Previous extensive mechanical characterization of this material has shown a high dependence on the final component properties on layer thickness and curing times.
The objective of this research is to analyse the time-dependent behaviour of these materials. Specifically, closed-loops compression tests have been conducted, subjecting the material to loading and unloading sequences at strain levels of 5 and 25 %. To clarify, a strain level of 5 % falls within the elastic region of the material, while a strain level of 25 % is considerably within the plastic region. Various testing speeds were applied, namely 1, 5, 10, 25, and 100 mm/min. The influence of testing speed on the materials’ energy absorption capacity is evident. The highest difference is observed between 10 and 25 mm/min, indicating that the material’s ability to store energy is significantly reduced after a testing speed of 10 mm/min.",
journal = "International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor)",
title = "Time-dependent behaviour of photosensitive resins in mSLA technology",
pages = "80",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7373"
}

Milovanović, A., Montanari, M., Brighenti, R., Sedmak, A.,& Milošević, M.. (2023). Time-dependent behaviour of photosensitive resins in mSLA technology. in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor), 80.
https://hdl.handle.net/21.15107/rcub_machinery_7373

Milovanović A, Montanari M, Brighenti R, Sedmak A, Milošević M. Time-dependent behaviour of photosensitive resins in mSLA technology. in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor). 2023;:80.
https://hdl.handle.net/21.15107/rcub_machinery_7373 .

Milovanović, Aleksa, Montanari, Matteo, Brighenti, Roberto, Sedmak, Aleksandar, Milošević, Miloš, "Time-dependent behaviour of photosensitive resins in mSLA technology" in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor) (2023):80,
https://hdl.handle.net/21.15107/rcub_machinery_7373 .