Finite Element Analysis on Stress of Micro V-groove Components in GMP

YU Jianwu, LI Chan, YIN Shaohui, ZHU Kejun, YI Cheng

Abstract

Due to the large residual stress existing in micro-structure optical elements after GPM，the glass material D-ZK3 with low transition temperature was selected，and a finite element simulation model of micro V-grooves was developed with the software MSC. Marc. Five-element general Maxwell model was used to describe the viscoelastic properties of D-ZK3 glass at high temperatures，and the fill effect and stress distribution of micro V-grooves were simulated and analyzed under different molding parameters. The simulation results show that the maximum stress increases and filling effects are improved when the V-groove angle increases；the higher molding speed leads to higher maximum stress and molding pressure；whereas the maximum stress decreases with the increasing of molding temperature.

 

 

Keywords: optical glass,  glass molding press,  micro V-groove,  stress distribution,  filling effect


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