Machining of micro aspherical mould inserts

W. K. Chen, T. Kuriyagawa, H. Huang, N. Yosihara

Research output: Contribution to journalArticlepeer-review

99 Citations (Scopus)

Abstract

This paper reports a parametric investigation and development of grinding technologies for micro aspherical mould inserts using parallel grinding method. The parametric investigation revealed that at nanometric scale the undeformed chip thickness has little influence on the surface finish of ground inserts. The grinding trace spacing has a slightly larger influence on the surface finish. A new technique was developed to true and dress the resin bonded micro wheels with mesh size of #3000, which produced a satisfactory wheel form accuracy and relatively high grain packing density. A form error compensation technique was also developed, with which mould inserts of submicron form accuracy were consistently produced. Using the developed technologies, micro aspherical inserts of diameters ranging from 200 μm to 1000 μm with surface finish of around 10 nm and form error of ∼0.2-0.4 μm were successfully fabricated.

Original languageEnglish
Pages (from-to)315-323
Number of pages9
JournalPrecision Engineering
Volume29
Issue number3
DOIs
Publication statusPublished - 2005 Jul

Keywords

  • Form error compensation
  • Micro aspherical insert
  • Micro-dressing
  • Micro-truing
  • Parallel grinding
  • Tungsten carbide

ASJC Scopus subject areas

  • Engineering(all)

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