This work aims to investigate a hot incremental forming process for the manufacturing of polycarbonate sheets. The present process provides localized and controlled heating through the contact of the sheet with a rotating tool and, then, constitutes a viable way to preserve the flexible nature of this technology. A preliminary experimental campaign consisted of dynamic mechanical analyses and straight groove tests on the sheets to get an idea of the influence of the tool shape and rotation speed on the sheet heating, in order to reach temperatures that soften the polymeric sheets and do not compromise their surface quality. Given the results of these tests, fixed wall angle square pyramid frusta were manufactured by single-point incremental forming setting a unidirectional spiral toolpath, with and without localized heating. The results, regarding the surface quality of the components, were analysed to individuate the potential of the process under examination.
Localized heat assisted incremental forming of polycarbonate sheets by tool rotation / Formisano, A.; Durante, M.; Langella, A.; Minutolo, F. Memola Capece. - 2113:(2019), pp. 1-6. (Intervento presentato al convegno 22nd International Conference on Material Forming (ESAFORM 2019) tenutosi a Vitoria-Gasteiz nel 8/10 Maggio 2019) [10.1063/1.5112645].
Localized heat assisted incremental forming of polycarbonate sheets by tool rotation
Formisano, A.;Durante, M.;Langella, A.;Minutolo, F. Memola Capece
2019
Abstract
This work aims to investigate a hot incremental forming process for the manufacturing of polycarbonate sheets. The present process provides localized and controlled heating through the contact of the sheet with a rotating tool and, then, constitutes a viable way to preserve the flexible nature of this technology. A preliminary experimental campaign consisted of dynamic mechanical analyses and straight groove tests on the sheets to get an idea of the influence of the tool shape and rotation speed on the sheet heating, in order to reach temperatures that soften the polymeric sheets and do not compromise their surface quality. Given the results of these tests, fixed wall angle square pyramid frusta were manufactured by single-point incremental forming setting a unidirectional spiral toolpath, with and without localized heating. The results, regarding the surface quality of the components, were analysed to individuate the potential of the process under examination.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
