Investigation of novel low pressure lapping technology on aluminium moulds

N. H. Yu, Wing Bun Lee, C. Y. Chan, L. H. Li

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Aluminium is a popular material widely used in ultra-precision machining processes [1]. In this work, a novel ultra-precision lapping method was developed to remove the tool marks on an aluminum mould machined by Single Point Diamond Turning (SPDT). In SPDT process, tool marks are inevitably generated during the process, and these marks can affect the surface roughness and degrade the optical performance by generating distortion or scattering. However, conventional ultra-precision polishing methods cannot be applied to soft metals like aluminium and brass because it will scratch the machined surface. Therefore, a special lapping method was investigated by using a strand of hair to do lapping. The Taguchi method was used to determine the optimal parameters for the lapping process. Spectral Analysis was carried out to investigate the lapping performance. The results show the new lapping method has a good performance in lapping soft material.
Original languageEnglish
Title of host publicationProceedings of the 16th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2016
Publishereuspen
ISBN (Electronic)9780956679086
Publication statusPublished - 1 Jan 2016
Event16th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2016 - University of Nottingham, Nottingham, United Kingdom
Duration: 30 May 20163 Jun 2016

Conference

Conference16th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2016
Country/TerritoryUnited Kingdom
CityNottingham
Period30/05/163/06/16

Keywords

  • Al6061
  • Tool marks
  • Ultra-precision lapping

ASJC Scopus subject areas

  • Materials Science(all)
  • Environmental Engineering
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Instrumentation

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