Characterization of cutting-induced heat generation in ultra-precision milling of aluminium alloy 6061

Sujuan Wang, Suet To, Xindu Chen

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

Abstract

The technology of ultra-precision machining with single crystal diamond tool produces advanced components with higher dimensional accuracy and better surface quality. The cutting-induced heat results in high temperature and stress at the chip-tool and tool-workpiece interfaces therefore affects the materials and the cutting tool as well as the surface quality. In the ultra-precision machining of al6061, the cutting-induced heat generates precipitates on the machined surface and those precipitates induce imperfections on the machined surface. This paper uses the time-temperature-precipitation characteristics of aluminum alloy 6061 (al6061) to investigate the effect of feed rate on the cutting-induced heat generation in ultra-precision multi-axis milling process. The effect of feed rate and feed direction on the generation of precipitates and surface roughness in ultra-precision raster milling (UPRM) is studied. Experimental results show that heat generation in horizontal cutting is less than that in vertical cutting and a larger feed rate generates more heat on the machined workpiece. A smaller feed rate produces a better surface finish and under a larger feed rate, scratch marks are produced by the generated precipitates and increase surface roughness.
Original languageEnglish
Title of host publicationAdvances in Optics Manufacture
Pages201-206
Number of pages6
DOIs
Publication statusPublished - 26 Jul 2013
EventAsia Pacific Conference on Optics Manufacture 2012, APCOM 2012 - Changchun, China
Duration: 26 Aug 201228 Aug 2012

Publication series

NameKey Engineering Materials
Volume552
ISSN (Print)1013-9826

Conference

ConferenceAsia Pacific Conference on Optics Manufacture 2012, APCOM 2012
Country/TerritoryChina
CityChangchun
Period26/08/1228/08/12

Keywords

  • Aluminium alloy 6061
  • Heat generation
  • Precipitate
  • Ultra-precision raster milling

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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