Abstract
The article analysis the effect of exposure to ultraviolet light on the hardening process of the model made in the SLA technology. Research samples were created with the SLA additive technique using a 10s exposure time. In this experiment, the change in item hardness and density over a 96-hour period was analysed. Light exposure time for details of an item made in SLA technology results in an increase in hardness. At the same time are observed, changes in density and stabilization of both parameters with increasing exposure time to UV light.
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Highlights
Continuous progress and demand for manufacturing unique or short-series items have led to the development of incremental manufacturing techniques
The aim of the study is to assess the effect of the exposure time to UV light on the hardness and density of models made in the SLA technology
This study confirmed that material hardness increases with an increase in irradiation time
Summary
Continuous progress and demand for manufacturing unique or short-series items have led to the development of incremental manufacturing techniques These technologies consist of producing an item by applying one layer after another and bonding them to create the whole model. This is a new technology that is being used increasingly extensively It was developed in the early 1980s by Hideo Kodama, a Japanese researcher, who invented it and created the first model based on stereolithography. There have been rapid developments in the field of positioning and control This allowed for improvements in this method and the creation of 3D printers for printing models from light-curing polymers
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