On geometrical accuracy and integrity of surfaces in multi-mode abrasive waterjet machining of NiTi shape memory alloys

Ming Chu Kong, Devadula Srinivasu, Dragos Axinte, Wayne Voice, Jamie McGourlay, Bernard Hon

Research output: Journal PublicationArticlepeer-review

37 Citations (Scopus)

Abstract

NiTi shape memory alloys are largely employed in the manufacture of high-tech products (e.g. medical, aerospace, sensing). This research reports on the use of multi-mode (i.e. through cutting, countersinking and milling) abrasive waterjet machining of NiTi by investigating the influence of process parameters on the integrity and geometrical accuracy while taking into consideration the secondary temperature and mechanical induced transformations in the workpiece material. The research proved that AWJ machining, if optimally conducted, can generate surfaces that can fulfill the quality requirements (e.g. cut surface: roughness <4 μm; countersunk hole: circularity <0.04 mm, concentricity <0.15 mm; milled surface: roughness <5 μm) to make them used for manufacturing parts for the aerospace industry.

Original languageEnglish
Pages (from-to)555-558
Number of pages4
JournalCIRP Annals - Manufacturing Technology
Volume62
Issue number1
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Shape memory alloy
  • Surface analysis
  • Waterjet machining

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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