FEM simulation of the effect of cooling rate on prediction of surface deviation of compression molded glass lenses

International Conference on Mechanical Engineering and Applied Composite Materials

机械制造;材料科学

Chen, Guanjun^1 ; Tao, Bo^1 ; Xu, Shuang^1 ; Li, Gongfa^1

Key Laboratory of Metallurgical Equipment and Control Technology, Ministry of Education, Wuhan University of Science and Technology, Wuhan, Hubei

430081, China^1

关键词: Cooling methods;    Cooling rates;    FEM simulations;    Glass lens;    Quality checks;    Surface deviations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/307/1/012003/pdf
DOI  :  10.1088/1757-899X/307/1/012003

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

For precision compression glass molded lenses, surface deviation is vital for the quality check. In this research, the effects of cooling rates on the prediction of surface deviation in glass lenses by precision compression molding were studied. Two types of cooling method with many different cooling rates were investigated. Based on the simulation results, two steps cooling method is better. And slower the cooling rate cause larger surface deviation.