Airbag tool polishing for aspherical glass lens molds

被引：14

作者：

Lee, Hocheol ^{[1
]}

Kim, Junguk ^{[1
]}

Kang, Hyunhyung ^{[1
]}

机构：

[1] Hanbat Natl Univ, Dept Mech Engn, Taejon 305719, South Korea

来源：

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2010年 / 24卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Airbag tool; Aspherical lens; Footprint; Polishing; Tool mark; SURFACES; MACHINE; DIE;

D O I：

10.1007/s12206-009-1120-y

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents a novel airbag tool polishing technique for small aspherical glass lens molds. For a mold material such as tungsten-carbide, an ultra-precise grinding technique is used to generate the aspherical surface. However, the residual tool marks of the spiral pattern and scratch unavoidably develop on the mold surface. Therefore, post-polishing is required to obtain the optical surface. Footprinting by the superposition method without trajectory control was applied to polish the finely ground aspherical lens mold. A white light interferometer confirmed the tool mark removal effect. The final surface toughness was Ra 2nm. Microscopic observation also showed a cleaner surface without scratches.

引用

页码：153 / 158

页数：6

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