Proceedings of the
9th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2022)
15 – 18 November 2022, Singapore

Numerical Simulation of Glass Rolling Process for Cylindrical Lens Array

Kangsen Li1, Chunjin Wang1,a and Chi Fai Cheung1

1Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China


A simulation study was conducted to analyze the filling deformation of the rolled cylindrical lens array in glass rolling process. A thermal-displacement coupled finite element analysis was carried out on the glass rolling stage, in order to obtain the simulation results of forming stress, temperature distribution, filling ratio, and warpage. The results demonstrate that the plate temperature and radial displacement are the most influential factors for filling ratios among the processing parameters. The feed velocity has a little influence on filling ratios. In addition, radial displacement loading is the most dominating factor among three factors in determining the warping deformation of the rolled glass. When the radial displacement is beyond 0.2mm, the warpage of the rolled glass increases significantly. The warpage is sensitively proportional to the feed velocity, but increases slightly with greater temperature. Besides, overlarge forming stress easily induces crack growth of the rolled glass. These simulation results have certain guiding significance in getting an overall understanding of the processing parameters influence on the rolled glass quality, thus will help make decision in optimizing the processing conditions.

Keywords: Glass rolling process, Numerical simulation, Cylindrical lens array, Filling ratios, Warpage

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