Abstract

With the development of aerospace, military, medical, and 3C industries, the design of aspherical optical component has attracted more and more attention. As a substitute for the traditional manufacturing process for glass materials, the glass molding process (GMP) has the advantages of high forming accuracy, short production cycle, low cost, and non-pollution. This paper presents an overview of recent progresses of theory and technology in the glass molding process. The existing theoretical models (stress relaxation and structural relaxation) of glass material in GMP are introduced, and the most recent applications of these theoretical models are discussed. In addition, the latest advancements in theory of applying both high-frequency microwave and ultrasound-assisted techniques in GMP are detailed. Moreover, the implementations of both apparatus (heating source, ultrasonic vibration auxiliary device, molds, and measurement and controller) and whole machine of GMP are compared in detail. Lastly, the reasonable ranges and change rules of molding conditions, such as molding temperature, molding pressure, and holding time, are reviewed, and effects of GMP on performances (temperature distribution, stress, curve deviation) are discussed.

中文翻译：

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玻璃成型工艺理论与技术的综述

摘要

随着航空航天，军事，医疗和3C工业的发展，非球面光学组件的设计已引起越来越多的关注。作为玻璃材料传统制造工艺的替代，玻璃成型工艺（GMP）具有成型精度高，生产周期短，成本低，无污染的优点。本文概述了玻璃成型过程中理论和技术的最新进展。介绍了GMP中玻璃材料的现有理论模型（应力松弛和结构松弛），并讨论了这些理论模型的最新应用。此外，还详细介绍了在GMP中应用高频微波和超声辅助技术的最新理论进展。此外，详细比较了GMP的设备（加热源，超声振动辅助设备，模具以及测量和控制器）和整个机器的实现。最后，回顾了成型条件的合理范围和变化规律，如成型温度，成型压力和保持时间，并讨论了GMP对性能（温度分布，应力，曲线偏差）的影响。