Mechanism Study On Microformability Of Optical Glass In Ultrasonic-Assisted Molding Process

Ultrasonic-assisted glass molding process (UGMP) has gained a promising start in microptics fabrication in recent years. To further understand the microforming process and comprehensively evaluate the microformability of the glass in UGMP, theoretical considerations and numerical simulations are performed in this study. A generalised dynamic viscoelastic model of glass in UGMP is first reformulated based on the ultrasonic thermo-mechanical effects.