Simulation and optimization of roll to roll hot embossing based on viscoelastic material PMMA

Abstract

The roll to roll hot embossing(R2RHM) is an innovative technique for rapid fabrication of polymer microcomponents. In this paper, ABAQUS simulation software is used to establish the roller model in R2RHM. Moreover, the polymer material model PMMA viscoelastic material model is given by Prony series and WLF equation. Based on these models, the influence of five factors, as pattern radius, velocity, interference, temperature and duty cycle, on the quality of R2RHM is studied by a control variable method, and the influence trend of eachsingle factor on the quality of hot impression is obtained. It is resulted that the radius of the pattern has little effect on the quality of the hot impression, while the velocity, interference, temperature and duty cycle exhibited a significant effect on the quality of the hot impression.