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Surface quality improvement of aspheric pressing mould using parallel grinding method

  • F. H. Zhang*
  • , L. J. Li
  • , S. Dong
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

It is a cost-effective technology to obtain aspheric optics made from optical glass and other brittle materials using pressing mould. The optical quality of molded optics is determined mostly by the surface quality of the mould, which means poor mould surface with lots of cutter marks will result in adhesion phenomena and error replication between the optics and mould. ^ In this article, a chatter model about parallel grinding system was presented, and the reasons of chatter induced by velocity feed back was analyzed and simulated. By using parallel grinding system integrated ELID technology, and wheel with greater cross-section radius in rough grinding and constant grinding velocity in fine grinding, the amplitude of cutter marks in the surface of mould was minimized and the quality of the mould surface was improved.

Original languageEnglish
Title of host publicationKey Engineering Materials
PublisherTrans Tech Publications Ltd
Pages133-138
Number of pages6
ISBN (Print)9780878499748
DOIs
StatePublished - 2005

Publication series

NameKey Engineering Materials
Volume291-292
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Keywords

  • Aspheric optics
  • Cutter marks
  • ELID
  • Parallel grinding
  • Pressing mould

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