Numerical simulation of the focused powder streams in coaxial laser cladding

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Abstract

The powder flow structures of a coaxial nozzle for laser cladding was simulated by the numerical programme FLUENT with various arrangements of the nozzle exit. Both focused and columnar powder streams could be generated in a coaxial nozzle. It can be found that the concentration mode is influenced significantly by the nozzle arrangement and gas flow settings. According to the numerical results, more than 50% powder concentration can be increased in a gas stream through a specific nozzle arrangement for coaxial laser cladding.

Original languageEnglish
Pages (from-to)17-23
Number of pages7
JournalJournal of Materials Processing Technology
Volume105
Issue number1
DOIs
Publication statusPublished - 2000 Sep 7

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering

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