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|Type:||Artigo de evento|
|Title:||Heat Transfer And Curing Simulation Using The Finite Element Method In Infrared Thermolithography|
|Abstract:||Thermolithographic process of rapid prototyping is these based on the principle of cure of thermossensitive resin in the liquid state, through the infrared laser radiation (CO 2 laser). The processing of epoxy resin through Thermolithography requires both the knowledge of the reaction kinetics, properties of resin and operational parameters of laser. In order to fit and optimize the localized cure, it is necessary the domain of physical properties of the applied material and the domain of the CO 2 laser operational parameters. This work propose a kinetic model to study the reaction curing processes and describe the main features of the polymerization process, namely diffusion-controlled effects after vitrification and incomplete conversion, presenting an good agreement the experimental obtained by Differential Scanning Calorimeter (DSC). A physical theoretical model is applied to control the parameters which influence the confinement of the curing in the irradiated bulk. The study of the variation of amount of the component in the sample, the cure temperature, beside operational parameters was investigated in this work. Simulations using software ANSYS facility the comprehension of how each variable can affect the final product during its building and these simulations are also showed.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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