Artículos de revistas
Infrared laser stereolithography: prototype construction using special combination of compounds and laser parameters in localised curing process
Registro en:
International Journal Of Materials & Product Technology. Inderscience Enterprises Ltd, v. 21, n. 4, n. 241, n. 254, 2004.
0268-1900
WOS:000222929500002
10.1504/IJMPT.2004.004940
Autor
Jardini, AL
Maciel, R
Scarparo, MAF
Andrade, SR
Moura, LFM
Institución
Resumen
Infrared Laser Stereolithography (ILS) is a novel and cost-effective method to produce three-dimensional (3D) plastic objects. An infrared laser beam is exploited to achieve localised curing with a thermosensitive resin containing a curing agent and a filling material. Physical and chemical models describing the localised curing process in ILS are presented. Differential scanning calorimetry (DSC) is used to characterise the curing process and to evaluate the curing rate as a function of temperature and activation energy. A mathematical simulation model, using the finite element method software Ansys, is applied to predict cure profiles of the resin Lis a function of laser radiation conditions, showing good agreement with experimental results. This novel stereolithographic process can provide 3D solid Structures with good spatial resolution and no significant shrinkage. The stoichiometric amount and type of silica is found to be critical to confine the Curing process to a localised volume. O TEXTO COMPLETO DESTE ARTIGO, ESTARÁ DISPONÍVEL À PARTIR DE FEVEREIRO DE 2015. 21 4 241 254