Temperature analysis of the powder streams in coaxial laser cladding

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Abstract

The powder stream temperature of a newly developed coaxial laser cladding technique have been calculated and measured in this study. A simplified one-dimensional model of the particle heating problem under laser irradiation was solved with various conditions of laser intensity, particle size and flow velocity. The experimental results have been successfully detected by a pinhole infrared sensor with the temperature calibration for hot particles. The thermal profiles of the coaxial nozzle give an optimum operation range of the stand-off distance for coaxial laser cladding.

Original languageEnglish
Pages (from-to)565-570
Number of pages6
JournalOptics and Laser Technology
Volume31
Issue number8
DOIs
Publication statusPublished - 1999 Nov

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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