Surface characterization in ultra-precision machining of Al/SiC metal matrix composites using data dependent systems analysis

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Abstract

This paper presents a data dependent systems (DDSs) method for the analysis of surface generation in ultra-precision machining of Al/SiC metal matrix composites (MMCs). The DDS analysis provides a component by component wavelength decomposition of the surface roughness profile of the machined surface. A series of face cutting experiments was done on Al6061/15SiCpMMCs under different cutting conditions. The cutting results indicate that the characteristics of the wavelength components analyzed by the DDS analysis method are correlated well with the surface generation mechanisms. Since the relative powers of the wavelength components are used to measure the contributions of the cutting mechanisms to the total roughness, this resolves the shortcomings of the conventional spectrum analysis method in characterizing the surface properties such as pits and cracks in ultra-precision machining of MMCs.
Original languageEnglish
Pages (from-to)141-146
Number of pages6
JournalJournal of Materials Processing Technology
Volume140
Issue number1-3 SPEC.
DOIs
Publication statusPublished - 22 Sep 2003

Keywords

  • Cutting dynamics
  • Data dependent systems analysis
  • Metal matrix composites
  • Surface generation
  • Ultra-precision machining
  • Wavelength decomposition

ASJC Scopus subject areas

  • Materials Science(all)

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