A Solution for the Rupture of Polymeric Sheets in Plug-Assist Thermoforming

摘要

The rupture of polymeric sheets is one of the practical problems occurring during plug-assist thermoforming. This defect may occur both at the stage of mechanical stretching with a plug, as well as at the vacuum or pressure thermoforming stage. The results shown in our work not only lead to the understanding of the cause of this problem, but they also enable us to formulate a calculation of parameters that affect the rupture of polymeric sheets during plug-assist thermoforming for the production of axisymmetric polymeric articles.