Analysis and optimization of wire electric discharge cutting parameters for micro-hardness of Ni55.8Ti shape memory alloys

Neeraj Sharma, Kapil Gupta

Research output: Contribution to journalConference articlepeer-review

Abstract

Recently, there has been an increased usage of NiTi shape memory alloys in biomedical and other industrial applications due to their special properties such as shape memory effect, superelasticity, and high strength to density characteristics etc. But, due to their poor machinability, the advanced processes are being explored for their successful machining i.e. better machinability. This paper reports a part of research conducted on the machining of Ni55.8Ti by wire electric discharge cutting (WEDC). In the Taguchi L16 orthogonal array based experimental study, four important WEDC parameters namely gap voltage, pulse on-time, off-time and wire feed rate have been varied and their effects are analyzed on micro-hardness (which is an important machinability indicator) of the shape memory alloy specimen. ANOVA and Taguchi based optimization of WEDC parameters has also been done to secure the best value of the micro-hardness.

Original languageEnglish
Pages (from-to)774-780
Number of pages7
JournalProceedings of the International Conference on Industrial Engineering and Operations Management
Issue numberJuly
Publication statusPublished - 2019
Event3rd Eu International Conference on Industrial Engineering and Operations Management,IEOM 2019 - Pilsen, Czech Republic
Duration: 23 Jul 201926 Jul 2019

Keywords

  • Biomedical
  • Micro-hardness
  • Shape memory alloy
  • Taguchi
  • WEDC

ASJC Scopus subject areas

  • Strategy and Management
  • Management Science and Operations Research
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

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