Two-Stage-GITBlow - Modellbildung, Simulation und Optimierung der Wanddickenhomogenität

Abstract

The basic idea of the Two-Stage-GITBlow process is the combination gas-assisted injection molding (GAIM) and blow molding. A Preform is produced via GAIM and subsequently inflated inside the mold to create a larger thin-walled hollow space geometry. Aim of this paper is the derivation of material specific process settings that allow the creation of a homogeneous wall thickness distribution. This is achieved by developing a mathematical model for the prediction of the wall thickness homogeneity, as well as simulations of the transient temperature development inside the preform via Finite Elements